Run smoothly, with actors embracing love (5)
I believe the answer is:
coast
'run smoothly' is the definition.
'actors embracing love' is the wordplay.
'actors' becomes 'cast' (I've seen this before).
'embracing' means one lot of letters goes inside another.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'cast' placed around 'o' is 'COAST'.
'with' acts as a link.
(Other definitions for coast that I've seen before include "Shoreline" , "Move effortlessly" , "Seaside - freewheel" , "Littoral region" , "Land beside the sea" .)