The kind to be fond of (4)
I believe the answer is:
like
'be fond of' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for like that I've seen before include "One of the same kind" , "Find pleasant" , "Approve; be fond of" , "Enjoy; similar" , "something similar" .)