KC's kind (4)
I believe the answer is:
silk
'kc's' is the definition.
(thesaurus)
'kind' is the wordplay.
I cannot really understand how this works, but
'kind' could be 'ilk' (ilk can mean a type or kind) and 'ilk' is found in the answer.
A single letter 's' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for silk that I've seen before include "Fabric from larvae" , "Fine fabric -- senior barrister" , "Ancient double-oared ship could be mire" , "Fabric made from fine threads of certain worm" , "Fabric from fibre made by "worm"" .)