Band of two meeting obstacle (8)
I believe the answer is:
bracelet
'band' is the definition.
(I know that bracelet is a type of band)
'two meeting obstacle' is the wordplay.
'two' becomes 'brace' (brace can mean two of something).
'meeting' is a charade indicator (letters next to each other).
'obstacle' becomes 'let' ('let' could historically mean an obstruction).
'brace'+'let'='BRACELET'
'of' acts as a link.
(Other definitions for bracelet that I've seen before include "Band around the wrist" , "Ornamental wristband" , "Arm band" , "16 [ADORNMENT]" , "Ornament worn on arm or wrist" .)