Draw either side of street, showing brilliance (6)
I believe the answer is:
lustre
'brilliance' is the definition.
(I've seen this before)
'draw either side of street' is the wordplay.
'draw' becomes 'lure' (I've seen this before).
'either side of' indicates putting letters inside (one word goes around another one).
'street' becomes 'st' (abbreviation).
'lure' going around 'st' is 'LUSTRE'.
'showing' acts as a link.
(Other definitions for lustre that I've seen before include "Reflected light, sheen" , "Rustle up the sheen" , "Brilliancy" , "Gentle sheen, soft glow" , "Sheen or renown" .)