Musician with dress suit in accommodation (8)
I believe the answer is:
flautist
'musician' is the definition.
(flautist is a kind of musician)
'dress suit in accommodation' is the wordplay.
'dress' is an anagram indicator.
'in' is an insertion indicator.
'accommodation' becomes 'flat' (I've seen this before**).
'suit' anagrammed gives 'utis'.
'utis' inserted within 'flat' is 'FLAUTIST'.
'with' is the link.
(Other definitions for flautist that I've seen before include "Player of wind instrument" , "Studio recording period" , "James Galway, for example" , "James Galway, say" , "Musician" .)