Intermediary to move punt a little north (2-7)
I believe the answer is:
go-between
'intermediary' is the definition.
(I know that intermediary can be written as go-between)
'move punt a little north' is the wordplay.
'move' becomes 'go' (to go is to move).
'punt' becomes 'bet' (punt can mean a bet).
'a little' becomes 'wee' (I've seen this before).
'north' becomes 'N' (abbreviation).
'go'+'bet'+'wee'+'n'='GO-BETWEEN'
'to' is the link.
(Other definitions for go-between that I've seen before include "Runner" , "One who acts as messenger or negotiator" , "Intermediary" .)