Curious things I see with cat or cuckoo (9)
I believe the answer is:
esoterica
'curious things' is the definition.
'esoterica' can be an answer for 'things' (I have seen 'Obscure things' mean 'esoterica' so perhaps 'things' could also mean 'esoterica'). I am not certain of the 'curious' bit.
'i see with cat or cuckoo' is the wordplay.
'with' is a charade indicator (letters next to each other).
'cuckoo' is an anagram indicator.
'i'+'see'+'cat'+'or'='iseecator'
'iseecator' anagrammed gives 'ESOTERICA'.
Can you help me to learn more?
(Other definitions for esoterica that I've seen before include "Mystic objects" , "Highly specialised subjects" , "Coarse tie? (anag)" , "things not seen by many?" , "collection of specialist stuff" .)