Musician’s accessories lacking colour, getting the bird (4,4)
I believe the answer is:
mute swan
'bird' is the definition.
(mute swan is a kind of bird)
'musician's accessories lacking colour getting' is the wordplay.
'musician's accessories' becomes 'mutes' (I can't justify this - if you can you should believe this answer much more).
'lacking colour' becomes 'wan' (I've seen this before).
'getting' says to put letters next to each other.
'mutes'+'wan'='MUTE SWAN'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for mute swan that I've seen before include "Common waterbird" , "creature" .)