dear-stalker, n. — Green’s Dictionary of Slang

dear-stalker n.

[pun on SE deer-stalker, i.e. one who stalks deer, and on ‘the little dears’]

a wealthy idler who likes to follow and/or ogle attractive shopgirls or secretaries.

1900		Bulletin (Sydney) 13 Jan. 16/1: Enquiring Wag:- ‘Tell me, Gillies, are you a deer [sic] stalker?’ / Duncan G: – ‘Well, I’ve been a gay young bachelor for more than 60 years.’.
1914		H.A. Vachell Quinney’s in DSUE (1984).