PM potentially in distant future? (6)

I believe the answer is:

farage

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

'pm potentially in distant future?' is the definition.
The definition suggests a singular noun which matches the answer.

'distant future?' is the wordplay.
'distant' becomes 'far' (synonyms).
'future?' becomes 'age' (I can't explain this - if you can you should believe this answer much more).
'far'+'age'='FARAGE'

Can you help me to learn more?

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