Open late for supply of chamois (8)
I believe the answer is:
antelope
'chamois' is the definition.
(thesaurus)
'open late for supply' is the wordplay.
'open late' can be anagrammed to 'ANTELOPE'.
Though, I am unsure how the anagram is indicated.
'of' is the link.
Can you help me to learn more?
(Other definitions for antelope that I've seen before include "bounder!" , "A graceful gazelle from Africa" , "eg Eland" , "One ruminating" , "'Gazelle or springbok, say (8)'" .)