Illuminated refreshments arranged at till (8)
I believe the answer is:
floodlit
'illuminated' is the definition.
(floodlighting is a kind of illuminating)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for floodlit that I've seen before include "in the full glare of publicity" , "receiving enlightenment" , "Brightly illuminated" , "Given strong illumination" , "(Of building) illuminated at night" .)