A drug hit between Mars and Jupiter (8,4)
I believe the answer is:
asteroid belt
'mars and jupiter' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'a drug hit' is the wordplay.
'drug' becomes 'steroid' (type of drug).
'hit' becomes 'belt' (belting is a kind of hitting).
'a'+'steroid'+'belt'='ASTEROID BELT'
'between' is the link.
Can you help me to learn more?
(Other definitions for asteroid belt that I've seen before include "Zone where many minor planets orbit" , "Region of space between Mars and Jupiter - besotted liar (anag)" , "Region of interplanetary space - battered soil (anag)" .)