List eighteen letters in reverse order (4)
I believe the answer is:
rota
This clue might be a double definition.
'list eighteen' is the first definition.
'rota' can be an answer for 'list' (I've seen this in another clue). I am unsure of the 'eighteen' bit.
'letters in reverse order' is the second definition.
'rota' can be an answer for 'letters' (thesaurus). I'm not sure about the 'in reverse order' bit.
Can you help me to learn more?
(Other definitions for rota that I've seen before include "List of people to do job in turns" , "Repetitious canon" , "List of duties taken in turn" , "Task list, roster" , "Duty roster" .)