Suggestions (9)
(Other definitions for proposals that I've seen before include "Offers" , "Suggestions for action" .)
'suggestions' is the definition.
(tip is a kind of suggestion)
This is all the clue.
(Other definitions for tips that I've seen before include "Areas for dumping waste" , "Turns over" , "Ends" , "Gratuties" , "extra payments" .)