Hunt perhaps regularly left this bird quarry (7)
I believe the answer is:
cockpit
'hunt perhaps regularly left this' is the definition.
(James Hunt was a racing driver)
'bird quarry' is the wordplay.
'bird' becomes 'cock' (cock is a kind of bird).
'quarry' becomes 'pit' (synonyms).
'cock'+'pit'='COCKPIT'
(Other definitions for cockpit that I've seen before include "battlefield" , "position on board" , "Place where there was fighting" , "Where drivers work" , "Air pilot's compartment" .)