Stall the pair patrolling entrance to Olympia (5)
I believe the answer is:
booth
'stall' is the definition.
(synonyms)
'the pair patrolling entrance to olympia' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
'pair' could be 'oo' (resembles 00, a pair of ducks in cricket) and 'oo' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for booth that I've seen before include "Stand < and stall" , "Kiosk" , "Space for voting, phoning, etc" , "Market stall - Lincoln's assassin" , "Stall at fair or market" .)