Hint where to dump rubbish (3)
I believe the answer is:
tip
This could be a double definition.
'hint where' is the first definition.
'tip' can be an answer for 'hint' (I've seen this before). I am not certain of the 'where' bit.
'dump rubbish' is the second definition.
'tip' can be an answer for 'dump' (as in a rubbish tip). I am not sure about the 'rubbish' bit.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for tip that I've seen before include "Extremity; gratuity" , "Point; sweetener" , "Gratuity; hint" , "Small amount" , "Point; piece of advice" .)