Answer: ruffling

AnswerCrossword Clue
rufflingDisturb the smoothness or tranquility of
rufflingOrnament with or gather into a frill
ruffling(of a bird) Erect (its feathers) in anger or display
rufflingthe act of ruffling
rufflingDisorder or disarrange (someone's hair), typically by running one's hands through it
rufflingDisconcert or upset the composure of (someone)