Starchy food rejected by European staff one employed in spring? (7)
I believe the answer is:
maypole
'staff one employed in spring?' is the definition.
(pole or staff used in spring festival of May Day)
'starchy food rejected by european' is the wordplay.
'starchy food' becomes 'yam'.
'rejected' shows that the letters should be reversed in order.
'by' is a charade indicator (letters next to each other).
'european' becomes 'pole' (Pole is an example).
'yam' written backwards gives 'may'.
'may'+'pole'='MAYPOLE'
(Other definitions for maypole that I've seen before include "Some English dance around it on 1st May" , "Feature of traditional spring festivities" , "Danced-around post" , "Centre for traditional dance" , "focal point for dancers" .)