Crossword Genius

Mostly remain in disgrace (5)

Ross

I believe the answer is:

stain

'disgrace' is the definition.
(thesaurus)

'mostly remain in' is the wordplay.
'mostly' means to remove the last letter.
'remain' becomes 'stay' (staying is a kind of remaining).
'stay' with its final letter removed is 'sta'.
'sta'+'in'='STAIN'

(Other definitions for stain that I've seen before include "Colour, dye" , "Tarnish" , "Stigma" , "Blot" , "Discolouring mark" .)

I've seen this clue in The Telegraph.
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