Fool exposed Italians in front of two Americans (9)

I believe the answer is:
ignoramus
'fool' is the definition.
(I've seen this in another clue)
'exposed italians in front of two americans' is the wordplay.
'exposed' means to look at the middle letters (outside letters removed).
'italians' becomes 'signori' (I've seen this before).
'in front of two' becomes 'am' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'americans' becomes 'US' (United States).
The middle of 'signori' is 'ignor'.
'ignor'+'am'+'us'='IGNORAMUS'
Can you help me to learn more?
(Other definitions for ignoramus that I've seen before include "Fool" , "I wouldn't know" , "unwitting person" , "One is not intelligent" , "Stupid person" .)
