Band quiet after covers of Sinatra (4)
I believe the answer is:
sash
'band' is the definition.
(sash is a kind of band)
'quiet after covers of sinatra' is the wordplay.
'quiet' becomes 'sh'.
'after' means one lot of letters go next to another.
'covers of' says to hollow out the word (remove centre letters).
'sinatra' with its middle removed is 'sa'.
'sh' put after 'sa' is 'SASH'.
(Other definitions for sash that I've seen before include "Style of window" , "Ribbon worn over the shoulder" , "Cummerbund" , "Window frame; cloth strip (worn over shoulder)" , "Window frame - shoulder band" .)