Rushes around causing a scare (5)
I believe the answer is:
races
'rushes' is the definition.
('race' can be a synonym of 'rush')
'causing a scare' is the wordplay.
'causing' indicates an anagram.
'scare' anagrammed gives 'RACES'.
'around' is the link.
(Other definitions for races that I've seen before include "Running competitions" , "Rushes" , "Events at Epsom or Ascot?" , "Human groups" , "Speed competitions for various peoples" .)