Numbered clubs (5)
I believe the answer is:
irons
'numbered clubs' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for irons that I've seen before include "Metal-headed golfclubs" , "Metal leg shackles" , "sporting equipment" , "Metal shackles and golf clubs" , "Devices restricting personal freedom in prisons" .)