Beastly food for a chap with a broken leg (6)
I believe the answer is:
mangel
'beastly food' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'chap with a broken leg' is the wordplay.
'chap' becomes 'man' (chap can mean a man).
'with' says to put letters next to each other.
'a broken' is an anagram indicator.
'leg' anagrammed gives 'gel'.
'man'+'gel'='MANGEL'
'for a' acts as a link.
Can you help me to learn more?
(Other definitions for mangel that I've seen before include "Type of beet for cattle fodder" , "cattle food" .)