Answer: tousles

AnswerCrossword Clue
TOUSLES

Musses, as hair

TOUSLES

Messes up one's hair

TOUSLES

Musses up

TOUSLES
Dishevels
TOUSLES
Messes up, as hair
TOUSLESRumples.
TOUSLESDishevels.
TOUSLESMesses up, as the hair
TOUSLESRuffles, as the hair
TOUSLESRoughs up