Home position, for example (8)
I believe the answer is:
instance
'example' is the definition.
(I know that example can be written as instance)
'home position' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'position' becomes 'stance' (stance is a kind of position).
'in'+'stance'='INSTANCE'
'for' acts as a link.
(Other definitions for instance that I've seen before include "Particular example" , "Case or example from ancients" , "Case - isn't acne (anag)" , "'Example, illustration (8)'" , "Exemplify" .)