Commotion unduly restricts director (2-2)
I believe the answer is:
to-do
'commotion' is the definition.
(I've seen this before)
'unduly restricts director' is the wordplay.
'unduly' becomes 'too' (I've seen this in another clue).
'restricts' means one lot of letters goes inside another.
'director' becomes 'd' (abbreviation eg in film reviews).
'too' going around 'd' is 'TO-DO'.
(Other definitions for to-do that I've seen before include "Bustle" , "Fuss and bother" , "Quarrel" , "Fuss or commotion" , "Kerfuffle" .)