Gay band talking nonsense (10)
I believe the answer is:
blithering
'talking nonsense' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'gay band' is the wordplay.
'gay' becomes 'blithe' (I've seen this before).
'band' becomes 'ring' (a ring is a band of metal).
'blithe'+'ring'='BLITHERING'
Can you help me to learn more?
(Other definitions for blithering that I've seen before include "Contemptible" , "talking foolishly" , "Foolish" , "Stupid" .)