Make grandad pay a lot for tropical fruit (6)
I believe the answer is:
papaya
'tropical fruit' is the definition.
(I've seen this before)
'make grandad pay a lot' is the wordplay.
I cannot really see how this works, but
'make' could be 'pay' (paying is a kind of making) and 'pay' is present in the answer.
'a' is present in the answer.
The remaining letters 'pa' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'for' acts as a link.
Can you help me to learn more?
(Other definitions for papaya that I've seen before include "Tropical yellow fruit" , "Oval melon-like tropical fruit" , "Tropical fruit tree used in medicine" , "Fruit with orange flesh" , "Tropical green-skinned fruit" .)