Be a spokesman concerning a gift (9)
I believe the answer is:
represent
'be a spokesman' is the definition.
'represent' can be an answer for 'be' (synonyms). I am not sure about the 'a spokesman' bit.
'concerning a gift' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'a gift' becomes 'present' (present is a kind of gift).
're'+'present'='REPRESENT'
Can you help me to learn more?
(Other definitions for represent that I've seen before include "Illustrate" , "Portray" , "Mean" , "declare" , "Speak on behalf" .)