Corner of a chine? (5)

I believe the answer is:

niche

'corner' is the definition.
(synonyms)

'of a chine?' is the wordplay.
'of' indicates anagramming the letters (the answer comes from or 'of' the letters).
'chine' is an anagram of 'NICHE'.

(Other definitions for niche that I've seen before include "Specialist area" , "Special location" , "Suitable position or small alcove" , "Calling" , "Suitable slot" .)

I've seen this clue in the Evening Standard.

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