Dish to wilt in the middle of the road (7)
I believe the answer is:
lasagne
'dish' is the definition.
(lasagne is a kind of dish)
'wilt in the middle of the road' is the wordplay.
'wilt' becomes 'sag' (I've seen this in another clue).
'in the middle of' indicates putting letters inside.
'the road' becomes 'lane' (a lane is a small road).
'sag' going within 'lane' is 'LASAGNE'.
'to' acts as a link.
(Other definitions for lasagne that I've seen before include "Lea sang out for the pasta dish" , "Italian dish with layers of pasts and mince between" , "The Italian dish is a gas, Len" , "Type of pasta" , "Sheet pasta" .)