King seen in hackneyed war drama (6)
I believe the answer is:
edward
'king' is the definition.
(I know that Edward is King of England)
'in hackneyed war drama' is the wordplay.
'in' says the answer is hidden in the clue.
'EDWARD' is hidden within 'hackneyed war drama'.
'seen' is the link.
(Other definitions for edward that I've seen before include "Former prime minister" , "Name Lambert Simnel took when crowned" , "-- Scissorhands" , "- the Confessor, English king" , "Prince born in 1964" .)