Stimulate awareness, might one say? (6)
I believe the answer is:
incite
'stimulate' is the definition.
(inciting is a kind of stimulating)
'awareness might one say?' is the wordplay.
'awareness' becomes 'insight' (I've seen this before).
'might one say?' indicates a 'sounds like' (homophone) clue.
'insight' is a homophone of 'INCITE'.
(Other definitions for incite that I've seen before include "Whip up" , "Provoke, set off" , "Provoke - stimulate" , "Urge (to violence)" , "Foment or arouse" .)