Queen and I crazy about horses (6)
I believe the answer is:
equine
'queen and i crazy about horses' is the definition.
I can't judge whether this defines the answer.
'queen and i crazy' is the wordplay.
'and' is a charade indicator (letters next to each other).
'crazy' is an anagram indicator.
'queen' put after 'i' is 'iqueen'.
'iqueen' anagrammed gives 'EQUINE'.
Can you help me to learn more?
(Other definitions for equine that I've seen before include "Like a horse" , "Horse or donkey, perhaps" , "Relating to horses" , "Like horses" , "like knight?" .)