Completely tire of sport away from home (4,3)
I believe the answer is:
wear out
'completely tire' is the definition.
'wear out' can be an answer for 'tire' (synonyms). I am not certain of the 'completely' bit.
'sport away from home' is the wordplay.
'sport' becomes 'wear' (sport can mean to wear or display on one's person).
'away from home' becomes 'out' (synonyms).
'wear'+'out'='WEAR OUT'
'of' is the link.
Can you help me to learn more?
(Other definitions for wear out that I've seen before include "Impair by use" , "Use until no longer usable" , "Bring to end of useful life" , "Decay; tire utterly" , "Exhaust" .)