Complains about a number of the shades (6)
I believe the answer is:
'the shades' is the definition.
(I've seen this in another clue)
'complains about a number' is the wordplay.
'complains' becomes 'binds' (I can't justify this - if you can you should believe this answer much more).
'about' is an insertion indicator.
'a number' becomes 'L' (fifty in Roman numerals).
'binds' placed around 'l' is 'BLINDS'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for blinds that I've seen before include "sun-block?" , "Window covers to hinder sight" , "Destroys sight of window covers" .)