Suggested how to deal with the din (6)
I believe the answer is:
hinted
'suggested' is the definition.
('hint' can be a synonym of 'suggest')
'to deal with the din' is the wordplay.
'to deal with' is an anagram indicator (to deal with can mean to tidy up or sort out).
'the'+'din'='thedin'
'thedin' anagrammed gives 'HINTED'.
'how' is the link.
(Other definitions for hinted that I've seen before include "Made an indirect suggestion" , "Gave clue" .)