One offering choice words misrepresented large nose (9)
I believe the answer is:
sloganeer
'one offering choice words' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'misrepresented large nose' is the wordplay.
'misrepresented' is an anagram indicator.
'large'+'nose'='largenose'
'largenose' anagrammed gives 'SLOGANEER'.
Can you help me to learn more?
(Other definitions for sloganeer that I've seen before include "bearer of a message" , "Inventor of memorable phrases for campaigning" , "Use catchphrases" , "sound bite producer?" .)