Music maker to fix stair (5)
I believe the answer is:
sitar
'music maker' is the definition.
(sitar is a kind of musical instrument)
'fix stair' is the wordplay.
'fix' indicates an anagram.
'stair' anagrammed gives 'SITAR'.
'to' is the link.
(Other definitions for sitar that I've seen before include "Hindu string instrument" , "Long-necked musical instrument of India" , "Lasting from morning to night" , "instrument out east" , "Indian musical instrument like long-necked lute" .)