Very tired, pleasure-seeking soon enough (3,2,4,4)
I believe the answer is:
all in good time
'soon enough' is the definition.
(I've seen this before)
'very tired pleasure-seeking' is the wordplay.
'very tired' becomes 'allin' (I've seen this in another clue).
'pleasure-seeking' becomes 'good-time' (I've seen this before).
'allin'+'goodtime'='ALL IN GOOD TIME'
(Other definitions for all in good time that I've seen before include "Soon enough" , "Ultimately" , "Not until the right moment" , "eventually?" , "nobody is late" .)