The gaffer may get no rise! (6)
I believe the answer is:
senior
'the gaffer' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'may get no rise' is the wordplay.
'may' indicates an anagram (I've seen 'might' mean this (I've seen this in other clues)).
'get' means one lot of letters go next to another.
'no' put next to 'rise' is 'norise'.
'norise' is an anagram of 'SENIOR'.
Can you help me to learn more?
(Other definitions for senior that I've seen before include "Superior - elder" , "More advanced in years or authority" , "Older or higher in standing" , "Being old" , "Older in years or higher in rank" .)