Cakes or small ice creams (6)
I believe the answer is:
scones
'cakes' is the definition.
(type of small cake)
'small ice creams' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'ice creams' becomes 'cones' (ice cream cones).
's'+'cones'='SCONES'
'or' acts as a link.
(Other definitions for scones that I've seen before include "Small soft cakes of flour, fat and milk - eaten buttered" , "Small flattish plain cake" , "Cakes for tea" , "Basic components of cream teas" , "Small unsweetened or lightly sweetened cakes" .)