Bar menu not initially ruined - works at possibly dodgy suggestions (10)

'possibly dodgy suggestions' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Maybe you can see an association between them that I can't see?

'bar menu not initially ruined works' is the wordplay.
'bar' becomes 'inn' (both can mean a drinking establishment).
'not initially' means to remove the first letter.
'ruined' indicates an anagram.
'works' becomes 'does' (I can't justify this - if you can you should believe this answer much more).
'menu' with its initial letter removed is 'enu'.
'enu' with letters rearranged gives 'uen'.
'inn'+'uen'+'does'='INNUENDOES'

'at' acts as a link.

Can you help me to learn more?