Unexpected difficulty, 4 letters
Danger spot, 7 letters
Drawback, 7 letters
Hazard, 7 letters
Hidden hazard, 7 letters
Trap, 7 letters
An unforeseen or unexpected difficulty, 7 letters
A trap in the form of a concealed hole, 7 letters
Booby traps, 8 letters
Concealed holes, 8 letters
Hidden dangers, 8 letters
Unforeseen difficulties, 8 letters