Bunch for one inhibited by lack of authority (7)
I believe the answer is:
nosegay
'bunch' is the definition.
(a nosegay is a bunch of flowers)
'for one inhibited by lack of authority' is the wordplay.
'for one' becomes 'eg' (I've seen this in other clues).
'inhibited by' is an insertion indicator (I've seen this in other clues).
'lack of' becomes 'no' (lack of money is no money).
'authority' becomes 'say' (I've seen this in other clues).
'no'+'say'='nosay'
'eg' placed within 'nosay' is 'NOSEGAY'.
(Other definitions for nosegay that I've seen before include "Fragrant bunch of flowers" , "Fragrant posy" , "bunch of pansies?" , "Old-fashioned posy" , "Flower arrangement" .)