Where bookings are made for a treat she arranged (8)
I believe the answer is:
theatres
'where bookings are made' is the definition.
The definition suggests a singular noun but the answer is a plural noun.
'a treat she arranged' is the wordplay.
'arranged' indicates anagramming the letters.
'treat'+'she'='treatshe'
'treatshe' with letters rearranged gives 'THEATRES'.
'for' is the link.
Can you help me to learn more?
(Other definitions for theatres that I've seen before include "Buildings for dramatic art" , "Operating rooms" , "They're for surgery, drama and lectures" , "Scenes of important events, like playhouses" , "Set heart against performance spaces" .)