Guide for chaps on rocky peak (6)
I believe the answer is:
mentor
'guide' is the definition.
(thesaurus)
'chaps on rocky peak' is the wordplay.
'chaps' becomes 'men' (I've seen this before).
'on' means one lot of letters go next to another.
'rocky peak' becomes 'tor' (I've seen this before).
'men'+'tor'='MENTOR'
'for' acts as a link.
(Other definitions for mentor that I've seen before include "Wise counsellor (of protege)" , "Wise and experienced counsellor" , ""Guide, philosopher, and friend"" , "Wise and trusted guide and advisor" , "He advises" .)