One Parliamentarian with kind of voice that's influential (9)
I believe the answer is:
impactive
'influential' is the definition.
Both the answer and definition are adjectives.
Maybe you can see an association between them that I don't see?
'one parliamentarian with kind of voice' is the wordplay.
'one' becomes 'i' (Roman numeral).
'parliamentarian' becomes 'MP' (Member of Parliament).
'with' says to put letters next to each other.
'kind of voice' becomes 'active' (I've seen this in another clue).
'i'+'mp'+'active'='IMPACTIVE'
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for impactive that I've seen before include "Smashing together" , "making a strong impression" .)