Go near mixed fruit (6)
I believe the answer is:
orange
'fruit' is the definition.
(I know that orange is a type of fruit)
'go near mixed' is the wordplay.
'mixed' indicates anagramming the letters.
'go'+'near'='gonear'
'gonear' anagrammed gives 'ORANGE'.
(Other definitions for orange that I've seen before include "Colour between red and yellow" , "Kind of sauce" , "Mandarin?" , "Colour of an onager?" , "A rainbow colour" .)