Del’s back for toboggan (4)
I believe the answer is:
sled
'toboggan' is the definition.
(I've seen this before)
'del's back' is the wordplay.
'back' says the letters should be written backwards.
'dels' backwards is 'SLED'.
'for' acts as a link.
(Other definitions for sled that I've seen before include "American toboggan" , "Goods vehicle" , "Tray on which to slide" , "Toboggan (mainly US)" , "Winter transport" .)