Something puzzling about public transport (5)
I believe the answer is:
rebus
'something puzzling' is the definition.
I know that 'puzzling' relates to this answer.
'about public transport' is the wordplay.
'about' becomes 're' (regarding).
'public transport' becomes 'bus' (bus is a kind of public transport).
're'+'bus'='REBUS'
Can you help me to learn more?
(Other definitions for rebus that I've seen before include "Puzzling device" , "Word puzzle involving pictures" , "that's puzzling" , "Picture-letter puzzle" , "Enigmatic representation" .)