When upset, young boy gets health food (5)
I believe the answer is:
salad
'health food' is the definition.
'salad' can be an answer for 'food' (salad is a type of food). I am unsure of the 'health' bit.
'when upset young boy' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'upset' says the letters should be written in reverse.
'young boy' becomes 'lad' (lad can mean a boy or young man).
'as' backwards is 'sa'.
'sa'+'lad'='SALAD'
'gets' is the link.
Can you help me to learn more?
(Other definitions for salad that I've seen before include "Mainly raw cold dish" , "A dish of lettuce and vegetables" , "Raw, green, veg" , "Food dish" , "Cold dish of vegetables or fruits" .)