He's in the forefront, 4 letters
Seesaw riders, for example, 6 letters
Their Set Adrift on Memory Bliss went to #1 in 1991, 6 letters
Went into a personal online chat, for short, 4 letters
Post-'77 tire-sizing system (1,6), 7 letters
Abolished cabinet post: Abbr., 3 letters
Stamp cancelers (abbr.), 4 letters
Hypothetical primate, 3 letters
Father swallowing bite of meat plain (5), 4 letters
Aunt Flo, initially, 3 letters
It's Not ___, It's You! (2010 totally non-hormonal humor book by Deb Amlen), 3 letters
It's Not ___, It's You! (Deb Amlen book having nothing to do with British politics), 3 letters
That time of the month hassle, 3 letters
Abbreviated afternoons, 3 letters
Afternoons and evenings, briefly, 3 letters
Afternoons, briefly (and hint to this puzzle's theme), 3 letters
Afternoons, for short, 3 letters
Blair among others: Abbr., 3 letters
Blair and Brown, for two: abbr., 3 letters
Blair and Major, briefly, 3 letters
Blair and predecessors: abbr., 3 letters
Blair and Thatcher, for short, 3 letters
Blair and Thatcher: Abbr., 3 letters
Blair, Brown and others, in brief, 3 letters
Blair, Major, etc. (abbr.), 3 letters
British govt. leaders, 3 letters
British leaders, for short, 3 letters
British V.I.P. group, 3 letters
Brown and Harper: Abbr., 3 letters
Cameron and Harper: Abbr., 3 letters
Canada's King and Clark, for short, 3 letters
Canadian electees, for short, 3 letters
Canadian leaders: Abbr., 3 letters
Chretien and Blair: Abbr., 3 letters
Condition evoked in many a misogynist comment, 3 letters
Condition evoked in many a sexist remark, 3 letters
Dinner periods, for short, 3 letters
Downing St. bigwigs, 3 letters
Downing St. figures, 3 letters
Downing St. residents, 3 letters
Downing St. V.I.P.'s, 3 letters
Eden and MacMillan (abbr.), 3 letters
Eden and others, for short, 3 letters
Evening hours: Abbr., 3 letters
Heath and Eden: Abbr., 3 letters
High ranking Brit pols, 3 letters
It may include cramps: Abbr., 3 letters
Japanese leaders (abbr.), 3 letters
Leaders of the U.K. and Isr., 3 letters
Major and Blair, for short, 3 letters
Major and predecessors: Abbr., 3 letters
Meir and Rabin, briefly, 3 letters
Monthly hassle for women -- and men, 3 letters
Parliamentary bigwigs, for short, 3 letters
Parliamentary govt. leaders, 3 letters
Some Brit. statesmen, 3 letters
Some world leaders: Abbr., 3 letters
Source of a monthly problem, 3 letters
Summit gatherers, for short, 3 letters
Thatcher and Blair (Abbr.), 3 letters
Thatcher and Blair, briefly, 3 letters
Thatcher and Eden (abbr.), 3 letters
Times of day hidden in eight puz. answers, 3 letters
Times of day: Abbr., 3 letters
Tony Blair and Gordon Brown: abbr., 3 letters
Tony Blair and others, briefly, 3 letters
Tony Blair and others, for short, 3 letters
Tony Blair et al. (abbr.), 3 letters
U.K.'s Gordon Brown et al., 3 letters
Winston and Tony: abbr., 3 letters
A syndrome that occurs in many women from 2 to 14 days before the onset of menstruation, 3 letters
Debt settler: Abbr., 3 letters