Set among some pyramids (4)
I believe the answer is:
amid
'set' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'among some pyramids' is the wordplay.
'among' indicates the answer is hidden within the clue.
'AMID' is hidden within 'some pyramids'.
Can you help me to learn more?
(Other definitions for amid that I've seen before include "Amongst" , "Surrounded by" , "Among" , "A dim sort of preposition" , "In the course of" .)