Speculators left on the corner in a bus (5)
I believe the answer is:
bulls
'speculators' is the definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps there's an association between them I don't understand?
'left on the corner in a bus' is the wordplay.
'left on the corner' becomes 'll' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in' is an insertion indicator.
'll' placed inside 'bus' is 'BULLS'.
Can you help me to learn more?
(Other definitions for bulls that I've seen before include "Male whales" , "Male cattle" , "Male animals" , "Adult males of domestic cattle" .)