Publicity seeker's act (5)
I believe the answer is:
stunt
'publicity seeker's act' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stunt that I've seen before include "Dwarf" , "Impede growth" , "Action to gain attention, sometimes dangerous" , "Publicity seeking escapade" , "Limit the growth of" .)