Support needed by Elizabeth, contrary nut (6)
I believe the answer is:
brazil
'nut' is the definition.
(brazil is a kind of nut)
'support needed by elizabeth contrary' is the wordplay.
'support' becomes 'bra' (a support for the breasts).
'needed by' is a charade indicator (letters next to each other).
'elizabeth' becomes 'liz'.
'contrary' says the letters should be written in reverse.
'liz' written backwards gives 'zil'.
'bra'+'zil'='BRAZIL'
(Other definitions for brazil that I've seen before include "Rio's country" , "Fifth-largest country" , "Nut (from South America?)" , "Type of nut" , "South American state" .)