Hint of mine recalled (3)
I believe the answer is:
tip
'hint' is the definition.
(I know that hint can be written as tip)
'mine recalled' is the wordplay.
'mine' becomes 'pit' (down the pit).
'recalled' shows that the letters should be reversed in order.
'pit' backwards is 'TIP'.
'of' is the link.
(Other definitions for tip that I've seen before include "present!" , "Pointed end" , "The rubbish dump" , "Clue" , "Gratuity; rubbish-dump" .)