Yard (4)
(Other definitions for sale that I've seen before include "Bargain time" , "Auction - somewhere in Greater Manchester" , "Occasion for buying at reduced prices" , "Bargain-price event" , "Disposal of shop's stock at reduced prices" .)
'yard' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for spar that I've seen before include "Pole-shaped part of the rigging" , "Fight (in training) - pole (on boat)" , "Crystalline mineral" , "Mineral; plane's wing beam" , "Scrap" .)