Commanding batting attack (2,6)
I believe the answer is:
in charge
'commanding' is the definition.
(thesaurus)
'batting attack' is the wordplay.
'batting' becomes 'in'.
'attack' becomes 'charge' (charge is a kind of attack).
'in'+'charge'='IN CHARGE'
(Other definitions for in charge that I've seen before include "At the helm" , "Commanding" , "as a responsible person" , "position of authority" , "ruling" .)