What the director called fringe movement losing the head (6)
I believe the answer is:
action
'head' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for action that I've seen before include "The mechanism of, say, a watch" , "Film director's cry?" , "Director's cue?" , "Take proceedings" , "Lawsuit; something done" .)