Acidulous (4)
'acidulous' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tart that I've seen before include "Sharp - bakery product" , "Sour -- acid" , "Sharp; pastry" , "quiche, perhaps" , "Open-topped pie" .)
'acidulous' is the definition.
(similar in meaning)
This is all the clue.
(Other definitions for sour that I've seen before include "Acrid or sullen" , "Curdled" , "Having an acid taste or smell" , "Acid - rancid" , "Rancid or tart" .)