Make your wife a metal finger, to recover from injury on pitch (4,2,3,5)
I believe the answer is:
lead to the altar
'make your wife a' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'metal finger to recover from injury on pitch' is the wordplay.
I cannot really understand how this works, but
'metal' could be 'lead' (lead is a kind of metal) and 'lead' is present in the answer.
'finger' could be 'tot' (both can mean small measure) and 'tot' is found in the answer.
'recover' could be 'heal' (I've seen this in another clue) and 'heal' is found within the answer.
'pitch' could be 'tar' (synonyms) and 'tar' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?