Reed or Harrison
I believe the answer is:
rex
I believe this is a double definition.
'reed' is the first definition.
(I've seen this in another clue)
'harrison' is the second definition.
(actor Rex Harrison)
(Other definitions for rex that I've seen before include "King (L.)" , "King - Harrison?" , "King (Latin); cat breed" , "Part of official title of a king" , "One in the palace" .)