Cattle devouring hot dogs (5)
I believe the answer is:
chows
'dogs' is the definition.
(chow is a kind of dog)
'cattle devouring hot' is the wordplay.
'cattle' becomes 'cows' (synonyms).
'devouring' is an insertion indicator.
'hot' becomes 'h' (abbreviation eg on taps).
'cows' enclosing 'h' is 'CHOWS'.
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