Fruit found in old stove (6)
I believe the answer is:
orange
'fruit' is the definition.
(orange is a kind of fruit)
'old stove' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'stove' becomes 'range' (synonyms).
'o'+'range'='ORANGE'
'found in' acts as a link.
(Other definitions for orange that I've seen before include "Princely house" , "Unrhymable word?" , "tree" , "stocking filler" , "African flower" .)