Couple hire out band for show (8)
I believe the answer is:
bracelet
'band for show' is the definition.
(band worn for show)
'couple hire out' is the wordplay.
'couple' becomes 'brace' (brace can mean a pair of something).
'hire out' becomes 'let' (I've seen this in another clue).
'brace'+'let'='BRACELET'
(Other definitions for bracelet that I've seen before include "Might Bel react badly to this jewellery?" , "Might Bel react to the piece of jewellery?" , "Arm band" , "Bangle" , "16 [ADORNMENT]" .)