Butt of a gendarme's covered (3,3)

I believe the answer is:

fag end

'butt' is the definition.
(thesaurus)

'of a gendarme's covered' is the wordplay.
'covered' indicates the answer is hidden within the clue (the answer is covered up by the clue).
'FAG-END' is hidden in the letters of 'of a gendarme'.

(Other definitions for fag end that I've seen before include "Useless bit" , "Last insignificant bit" , "Last piece" , "Cigarette butt, the last part" , "Last and worst part" .)

I've seen this clue in The Guardian.

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