Freaked out, 5 letters
Was artificially cooled, for short, 5 letters
Was prepared for the heatwave, briefly, 5 letters
Was ready for the heat, for short, 5 letters
End of quip, 11 letters
Acted briefly, 9 letters
Appeared briefly, 9 letters
Performed briefly, 9 letters
Flipped out, a la Bart Simpson, 7 letters
Freaked out , 7 letters
Got upset on a farm?, 7 letters
Got upset with Bart Simpson?, 7 letters
Lost it, 7 letters
Lost one's cool, 7 letters
Really lost it, 7 letters
Really overreacted, 7 letters
Went ape, like Bart Simpson, 7 letters