Eccentric goaded regularly (3)
I believe the answer is:
odd
'eccentric' is the definition.
(odd can mean eccentric or unusual)
'goaded regularly' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'goaded' are 'ODD'.
(Other definitions for odd that I've seen before include "Strange, bizarre" , "Not even - curious" , "Peculiar sort of number?" , "Matchless" , "Unusual, strange" .)