Smoker right to be musician (5)
I believe the answer is:
piper
'be musician' is the definition.
(I've seen this before)
'smoker right' is the wordplay.
'smoker' becomes 'pipe' (**).
'right' becomes 'r' (common abbreviation).
'pipe'+'r'='PIPER'
'to' acts as a link.
(Other definitions for piper that I've seen before include "Musician sometimes paid (or pied!)" , "oil and gas field" , "Wind instrumentalist" , "English painter and stained glass designer, d. 1992" , "Musician (paid for a tune?)" .)