Leather strips for honing back competitive games (6)
I believe the answer is:
strops
'leather strips' is the definition.
(strop is a kind of leather strip)
'back competitive games' is the wordplay.
'back' says the letters should be written in reverse.
'competitive games' becomes 'sports' (I've seen this before).
'sports' back-to-front is 'STROPS'.
'for honing' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for strops that I've seen before include "Sharpens on piece of leather" , "Sharpens on leather for sports" , "Leather straps to sharpen razors" , "temper tantrums" , "bits of leather" .)