Can't rue recipe - it's half-horse (7)
I believe the answer is:
centaur
'half-horse' is the definition.
I can't judge whether this definition defines the answer.
'can't rue recipe' is the wordplay.
'recipe' indicates anagramming the letters.
'cant'+'rue'='cantrue'
'cantrue' anagrammed gives 'CENTAUR'.
'it's' is the link.
Can you help me to learn more?
(Other definitions for centaur that I've seen before include "Mythological horse-man" , "Fabulous beast, half man and half horse" , "Mythical semi-equine beast" , "Mythical creature, half-man, half-horse" , "Greek mythical creature" .)