Concealed by Greta Garbo setting up theatre (4)
I believe the answer is:
gate
'theatre' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'concealed by greta garbo setting up' is the wordplay.
'concealed' says the answer is hidden in the clue.
'setting up' says the letters should be written in reverse.
'etag' is hidden in the letters of 'by greta garbo'.
'etag' backwards is 'GATE'.
Can you help me to learn more?
(Other definitions for gate that I've seen before include "Garden door?" , "Facility in airport" , "Entrance; street" , "Entry barrier as to field" , "Entrance to a Dublin theatre" .)