Fruit that's no good to be eaten by Chinese leader (5)
I believe the answer is:
mango
'fruit' is the definition.
(mango is a kind of fruit)
'no good to be eaten by chinese leader' is the wordplay.
'no' becomes 'n' (common abbreviation).
'good' becomes 'g' (abbreviation).
'to be eaten by' is an insertion indicator.
'chinese leader' becomes 'mao' (I've seen this before).
'n'+'g'='ng'
'ng' inserted within 'mao' is 'MANGO'.
'that's' is the link.
(Other definitions for mango that I've seen before include "fruit tree" , "Fruit, often in chutney" , "Large oval tropical fruit" , "Yellow-fleshed fruit" , "Tropical fruit, its pickle" .)