Old king gets primate some fruit (5)
I believe the answer is:
grape
'fruit' is the definition.
(grape is a kind of fruit)
'old king gets primate' is the wordplay.
'old king' becomes 'GR' (Georgius Rex, Latin for King George).
'gets' says to put letters next to each other.
'primate' becomes 'ape' (large primate).
'gr'+'ape'='GRAPE'
'some' is the link.
(Other definitions for grape that I've seen before include "Pager (anag.)" , "Vine fruit" , "Wine fruit" , "Small fruit; type of shot" , "Green/black fruit" .)