Drop of French perfume (7)

I believe the answer is:

descent

'drop' is the definition.
(I've seen this in another clue)

'of french perfume' is the wordplay.
'of french' becomes 'de' ('of' in French).
'perfume' becomes 'scent' (synonyms).
'de'+'scent'='DESCENT'

(Other definitions for descent that I've seen before include "Downward path" , "Comedown (of ancestry?)" , "Ancestry - downward move" , "line" , "Pedigree" .)

I've seen this clue in The Times, the Sydney Morning Herald and The Telegraph.

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