Forged green card has caught out member of staff (8)
I believe the answer is:
gardener
'member of staff' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'forged green card has caught' is the wordplay.
'forged' indicates an anagram.
'card has' becomes 'ard' (I can't justify this - if you can you should give a lot more credence to this answer).
'caught' indicates putting letters inside.
'green' with letters rearranged gives 'gener'.
'gener' going around 'ard' is 'GARDENER'.
'out' is the link.
Can you help me to learn more?
(Other definitions for gardener that I've seen before include "Jesus was mistaken for" , "One may get food" , "Nursery employee" , "He tends flowers and shrubs" , "one working on plot?" .)