Electronic record featuring, say poet (7)
I believe the answer is:
elegist
'poet' is the definition.
(elegist is a kind of poet)
'electronic record featuring say' is the wordplay.
'electronic' becomes 'e' (as in e-mail or e-books).
'record' becomes 'list' (I've seen this before).
'featuring' indicates putting letters inside.
'say' becomes 'eg'.
'list' going around 'eg' is 'legist'.
'e'+'legist'='ELEGIST'
(Other definitions for elegist that I've seen before include "bemoaning linesman" , "Mournful poet" , "one wrote mournfully" , "Poet, e.g. Gray" , "serious linesman" .)