Remains following the end of brass bands (6)
I believe the answer is:
sashes
'bands' is the definition.
(sash is a kind of band)
'remains following the end of brass' is the wordplay.
'remains' becomes 'ashes' (I've seen this before).
'following' says to put letters next to each other.
'the end of' suggests the final letters.
The final letter of 'brass' is 's'.
'ashes' put after 's' is 'SASHES'.
(Other definitions for sashes that I've seen before include "Ornamental cloth chest-bands, such as me father wore in song" , "Bands of material around waists or shoulders" , "Fabric bands worn around body" , "Bands around the waist or chest" , "Ornamental cloths worn by Unionists" .)