Execute (6)
I believe the answer is:
render
'execute' is the definition.
(I know that render is a more specific form of the action execute)
This is the entire clue.
(Other definitions for render that I've seen before include "Provide (help), plaster" , "Submit - face the wall" , "Provide (assistance)" , "initial cover" , "Give brickwork a coat of plaster" .)