Obscure 1970s glam rock band with Wizzard and Roxy, both at the end (5)
I believe the answer is:
muddy
'obscure' is the definition.
(muddying is a kind of obscuring)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for muddy that I've seen before include "Mucky, marshy" , "Slimy" , "Covered in mire" , "Bespattered" , "Not bright or clear" .)