Green’s Dictionary of Slang

a hairdresser.

1968		D. Gray Died in Red ix. 52: She was then put under a drier. Twenty minutes or so later she was again taken to the stylist (or crimper as they called themselves) [OED].
1982		Aus. Womens’ Wkly 1 Dec. 16/3: Beverley Sassoon, crimper Vidal’s ex-wife.
1999		Indep. on Sun. Real Life 20 June 3: Celebrity crimper John Frieda.
2000		Guardian G2 26 Jan. 3: Celebrity crimper Michaeljohn.