Solicit some material, say (7)
I believe the answer is:
canvass
I believe this is a triple definition!
'solicit' is the first definition.
(canvassing is a kind of soliciting)
'some material' is the second definition.
(canvass is a kind of material)
'say' is the third definition.
(thesaurus)
(Other definitions for canvass that I've seen before include "Appeal for support" , "campaign" , "Electioneer" , "Survey people for opinions" , "see how the land lies" .)