Asian river tour and meal — each fifty per cent off (4)
I believe the answer is:
ural
'asian river' is the definition.
(I've seen this in another clue)
'tour and meal each fifty per cent off' is the wordplay.
I cannot quite see how this works, but
'fifty' could be 'l' (Roman numeral) and 'l' is present in the answer.
'per' could be 'a' and 'a' is located in the answer.
The remaining letters 'ur' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ural that I've seen before include "Mountains in Russia" , "The .... Mountains divide Europe and Asia" , "Russian river, rising in the mountains between Europe and Asia" , "Runner" , "Russian river flowing into the Caspian Sea" .)