Singer in pub, on end of stage, holding it (8)
I believe the answer is:
baritone
'singer' is the definition.
(baritone is a kind of singer)
'pub on end of stage holding it' is the wordplay.
'pub' becomes 'bar' (I've seen this before**).
'end of' indicates one should take the final letters.
'holding' indicates putting letters inside.
The last letter of 'stage' is 'e'.
'bar'+'on'+'e'='barone'
'barone' enclosing 'it' is 'BARITONE'.
'in' is the link.
(Other definitions for baritone that I've seen before include "One who can sing" , "Male singer in boater, strangely" , "Male voice with deep register" , "Male singer between tenor and bass" , "Male voice between bass and tenor" .)