Meals made by Salvation Army youths (6)
I believe the answer is:
salads
'meals' is the definition.
(I have seen 'Cold meals ' mean 'salads' so perhaps 'meals' could also mean 'salads')
'by salvation army youths' is the wordplay.
'by' says to put letters next to each other.
'salvation army' becomes 'SA' (abbreviation).
'youths' becomes 'lads' (lad means a boy or young man).
'sa' next to 'lads' is 'SALADS'.
'made' acts as a link.
(Other definitions for salads that I've seen before include "Cold, dressed dishes" , "Leafy dishes" , "Leafy meals" , "Food mixtures of lettuce etc." , "Cold dishes of vegetables or fruits" .)