Talked of part of wheel (5)
I believe the answer is:
spoke
I believe this clue is a double definition.
'talked' is the first definition.
('speak' can be a synonym of 'talk')
'part of wheel' is the second definition.
(I know this)
'of' is the link.
(Other definitions for spoke that I've seen before include "Wheel's radial member" , "Bicycle wheel rod" , "Said something" , "gave address" , "Rung" .)