Picture in my attic getting exhibited, initially (5)
I believe the answer is:
image
'picture' is the definition.
(I know that picture can be written as image)
'in my attic getting exhibited initially' is the wordplay.
'initially' says to take the initial letters.
The first letters of 'in my attic getting exhibited' is 'IMAGE'.
(Other definitions for image that I've seen before include "Representation, picture" , "Dead ringer" , "Epitome" , "Picture (involving one letter change from 10)" , "Public impression" .)