Limit of French liquor consumed (9)
I believe the answer is:
demarcate
'limit' is the definition.
(demarcating is a kind of limiting)
'of french liquor consumed' is the wordplay.
'of french' becomes 'de'.
'liquor' becomes 'marc' (marc is a kind of liquor).
'consumed' becomes 'ate' (eating is a kind of consuming).
'de'+'marc'+'ate'='DEMARCATE'
(Other definitions for demarcate that I've seen before include "Set limits" , "Separate; mark off" , "Limit" , "Bound" .)