Take a rest, having drunk old wine? (3,4)
I believe the answer is:
lie down
'take a rest' is the definition.
(I've seen this before)
'drunk old wine?' is the wordplay.
'drunk' indicates an anagram.
'old'+'wine'='oldwine'
'oldwine' anagrammed gives 'LIE-DOWN'.
'having' acts as a link.
(Other definitions for lie down that I've seen before include "Relax" , "Put your feet up" , "Assume recumbent position" , "Rest (with or without sleep)" , "Take rest; be submissive (under)" .)