Old queen falls in Africa (8)
I believe the answer is:
victoria
This clue might be a double definition.
'old queen falls' is the first definition.
'Victoria' can be an answer for 'falls' (Victoria Falls is an example). I am unsure of the 'old queen' bit.
'in africa' is the second definition.
('Victoria' is part of 'africa')
Can you help me to learn more?
(Other definitions for victoria that I've seen before include "Queen (eighteen thirty seven to nineteen hundred and one)" , "Station - plum - sponge - queen" , "Queen, Australian state and plum" , "Coach may only go so far" , "State < > carriage" .)