A lad’s fresh food (5)
I believe the answer is:
salad
'food' is the definition.
(salad is a kind of food)
'a lad's fresh' is the wordplay.
'fresh' is an anagram indicator.
'a'+'lads'='alads'
'alads' anagrammed gives 'SALAD'.
(Other definitions for salad that I've seen before include "Cold dish of raw vegetables" , "Lettuce, cucumber etc" , "Counter serving cold vegetable dishes" , "Mixed food" , "rabbit food" .)