Exhausted by high life eventually? (3,2,4,4)
I believe the answer is:
all in good time
'eventually?' is the definition.
(I've seen this before)
'exhausted by high life' is the wordplay.
'exhausted' becomes 'all in' ('all in' can mean exhausted).
'by high life' becomes 'goodtime' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'allin'+'goodtime'='ALL IN GOOD TIME'
Can you help me to learn more?
(Other definitions for all in good time that I've seen before include "Please be patient!" , "Soon enough" , "eventually?" , "No need to rush" , "Ultimately" .)