I’m a revolutionary pal of Napoleon (3)

I believe the answer is:

ami

I'm a little stuck... Click here to teach me more about this clue!

'pal of napoleon' is the definition.
The definition suggests a singular noun which matches the answer.

'i'm a revolutionary' is the wordplay.
'revolutionary' shows that the letters should be reversed in order.
'im'+'a'='ima'
'ima' written backwards gives 'AMI'.

Can you help me to learn more?

(Other definitions for ami that I've seen before include "Mon . . . - my French friend" , "Friend (Fr.)" , "buddy" , "Parisian's friend" , "friend abroad?" .)

I've seen this clue in The Sunday Times.

Want a hint initially instead of a full solution? Install my app