Deliver without charge (4)
I believe the answer is:
free
I believe this clue is a double definition.
'deliver' is the first definition.
(I've seen this before)
'without charge' is the second definition.
(sold at no cost)
(Other definitions for free that I've seen before include "Not incurring charge" , "Sewn-on trimming" , "Under no obligation" , "unemployed" , "Untie" .)