Food that could be made with more haste? (9)
I believe the answer is:
horsemeat
'food' is the definition.
(horsemeat is a kind of food)
'made with more haste?' is the wordplay.
'made' indicates an anagram.
'with' means one lot of letters go next to another.
'more' next to 'haste' is 'morehaste'.
'morehaste' with letters rearranged gives 'HORSEMEAT'.
'that could be' acts as a link.
(Other definitions for horsemeat that I've seen before include "food fit for dogs" , "It's not served in most restaurants!" , "source of food adulteration?" .)