Meagre pint served for soak (10)
I believe the answer is:
impregnate
'soak' is the definition.
(thesaurus)
'meagre pint served' is the wordplay.
'served' is an anagram indicator.
'meagre'+'pint'='meagrepint'
'meagrepint' anagrammed gives 'IMPREGNATE'.
'for' acts as a link.
(Other definitions for impregnate that I've seen before include "Saturate - permeating (anag)" , "Fill" , "soak" , "Saturate with a substance" , "Infuse" .)