Be sure to hold appeal for goal (6)
I believe the answer is:
basket
'goal' is the definition.
(basket is a kind of goal)
'be sure to hold appeal' is the wordplay.
'be sure' becomes 'bet' ('I bet that...' means 'I am sure that...').
'to hold' means one lot of letters goes inside another.
'appeal' becomes 'ask' (I've seen this in other clues).
'bet' going around 'ask' is 'BASKET'.
'for' is the link.
(Other definitions for basket that I've seen before include "Hamper" , "Woven receptacle" , "See 10" , "Container for shopping" , "Woven container for carrying food etc" .)