Basket-maker, or provider of stockings in Albert Square? (5)
I believe the answer is:
osier
This clue is a double definition.
'basket-maker' is the first definition.
(tree whose wood is used to make baskets)
'provider of stockings in albert square?' is the second definition.
('hosier' said with a cockney accent, dropping the 'H')
'or' acts as a link.
(Other definitions for osier that I've seen before include "Willow for making baskets" , "Basket-making material" , "Tree - Rosie (anag)" , "Basket-maker's willow" , "Willow growing shoots used in basketwork" .)