Actor Clive (4)
I believe the answer is:
owen
'actor clive' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for owen that I've seen before include "'E won over the Welshman" , "Welsh industrialist and social reformer, founder of cooperative communities, d. 1858" , "Welsh boy's name" , "Wilfred - - , WW1 poet" , "Wilfred - - , WWI poet" .)