Pay for to have a meal, with wine (7)
I believe the answer is:
support
'pay for' is the definition.
(thesaurus)
'to have a meal with wine' is the wordplay.
'to have a meal' becomes 'sup'.
'with' says to put letters next to each other.
'wine' becomes 'port' (port is a kind of wine).
'sup'+'port'='SUPPORT'
(Other definitions for support that I've seen before include "Prop" , "comfort" , "Help -- encourage" , "base" , "Bolster or back up" .)