Response ready to include drunken sot (7)
I believe the answer is:
riposte
'response' is the definition.
(I know that riposte is a type of response)
'ready to include drunken sot' is the wordplay.
'ready' becomes 'ripe' (similar in meaning).
'to include' means one lot of letters goes inside another.
'drunken' is an anagram indicator.
'sot' with letters rearranged gives 'ost'.
'ripe' enclosing 'ost' is 'RIPOSTE'.
(Other definitions for riposte that I've seen before include "Poster I alter for repartee" , "Quick clever reply" , "Rejoin" , "Return thrust or repartee" , "Quick sharp reply" .)