Girl collecting new bat for game (7)
I believe the answer is:
netball
'game' is the definition.
(netball is a kind of game)
'girl collecting new bat' is the wordplay.
'girl' becomes 'nell' (I've seen this before**).
'collecting' indicates putting letters inside.
'new' indicates an anagram.
'bat' is an anagram of 'tba'.
'nell' placed around 'tba' is 'NETBALL'.
'for' is the link.
(Other definitions for netball that I've seen before include "Seven-a-side team game -- all bent (anag)" , "Sport whose players wear bibs" , "Team game/sport" , "activity no longer associated solely with girls" , "Team game for tall Ben" .)