Security worker turned over this ID (7)
I believe the answer is:
nametag
'security' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'worker turned over this id' is the wordplay.
'worker' becomes 'man' (man is a kind of worker).
'turned' says the letters should be written in reverse.
'over' says the letters should be written backwards.
'this id' becomes 'gate' (I can't justify this - if you can you should believe this answer much more).
'man' backwards is 'nam'.
'gate' in reverse letter order is 'etag'.
'nam'+'etag'='NAMETAG'
Can you help me to learn more?
(Other definitions for nametag that I've seen before include "It may identify" , "One helps identify" .)