Answer: monkeyingaround

AnswerCrossword Clue
MONKEYINGAROUNDGoofing off
MONKEYINGAROUNDIdling
MONKEYINGAROUNDTrifling
MONKEYINGAROUNDTomfoolery
MONKEYINGAROUNDWhat the hardly serious ape was doing?