For starters, cut out most food you find reassuring (5)
I believe the answer is:
comfy
'reassuring' is the definition.
Both the definition and answer are adjectives. Maybe there's an association between them I don't understand?
'for starters cut out most food you' is the wordplay.
'for starters' suggests taking the first letters.
The first letters of 'cut out most food you' is 'COMFY'.
'find' is the link.
Can you help me to learn more?
(Other definitions for comfy that I've seen before include "Providing ease" , "easy" , "Cosy (colloq.)" , "Snug" , "Soft and pleasant to sit on" .)