When drunk, create alcoholic pastry (9,6)
I believe the answer is:
chocolate eclair
'pastry' is the definition.
(chocolate eclair is a kind of pastry)
'when drunk create alcoholic' is the wordplay.
'when drunk' indicates anagramming the letters (a drunken or disorderly form of the letters).
'create'+'alcoholic'='createalcoholic'
'createalcoholic' is an anagram of 'CHOCOLATE ECLAIR'.
(Other definitions for chocolate eclair that I've seen before include "cake" , "pastry" .)