Spoke more than once? (5)
I believe the answer is:
radii
'spoke more than once?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for radii that I've seen before include "Lines between the center and circumference of a circle" , "Straight lines from centre of a circle" , "parts for arms" , "Spokes of a circle" , "spoke several times" .)