Crossword Genius

It's the one fault that spoils Tim Reed (7)

Ross

I believe the answer is:

demerit

'it's the one fault' is the definition.
(synonyms)

'spoils tim reed' is the wordplay.
'spoils' indicates an anagram.
'tim'+'reed'='timreed'
'timreed' with letters rearranged gives 'DEMERIT'.

'that' is the link.

(Other definitions for demerit that I've seen before include "Fault, defect" , "Something deserving censure" , "Black mark" , "Feature deserving censure" , "Mark given for a fault" .)

I've seen this clue in the Evening Standard.
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