Exhibit a girl's dramatic work (7)
I believe the answer is:
display
'exhibit' is the definition.
(I know that exhibit can be written as display)
'a girl's dramatic work' is the wordplay.
'a girl's' becomes 'Dis' (Di is short for Diana).
'dramatic work' becomes 'play' (play is a kind of dramatic work).
'dis'+'play'='DISPLAY'
(Other definitions for display that I've seen before include "Reveal" , "Exhibition" , "Exhibit, show" , "Demonstrate, show" , "Show or arrange" .)