Crossword Genius

Accustom (5)

Ross

I believe the answer is:

inure

'accustom' is the definition.
(inuring is a kind of accustoming)

This is the entire clue.

(Other definitions for inure that I've seen before include "Harden or season" , "Cause to become hardened to" , "Temper, toughen" , "Steel" , "Come to accept" .)

I've seen this clue in The Wall Street Journal, the Penny Press, the Sydney Morning Herald, The Times, the LA Times, The Mirror, The Washington Post, the King Feature Syndicate, the Evening Standard and The Sunday Times.
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