Proof of the fire picked up by consumers in the cafeteria containing the last of the Cubans
I believe the answer is:
ashtrays
'cubans' is the definition.
Although both the answer and definition are plural nouns, I cannot see how they can define each other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for ashtrays that I've seen before include "where fags end up" , "Receptacles for tobacco detritus" , "Receptacles for smokers" , "smokers' necessities" , "Receptacles removed from pub" .)