Using which, fix handle on gear (8)
I believe the answer is:
nametape
'using' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?
'fix handle on gear' is the wordplay.
'fix' becomes 'name' (naming is a kind of fixing).
'handle on gear' becomes 'tape' (I am not sure about this - if you are sure you should believe this answer much more).
'name'+'tape'='NAMETAPE'
'which' is the link.
Can you help me to learn more?
(Other definitions for nametape that I've seen before include "ID sewn onto clothing" , "Identification sewn on clothing" , "evidence of ownership" .)