Feeling great, travelling on top of a double-decker? (6,4)
I believe the answer is:
riding high
'top of a double-decker?' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'feeling great travelling' is the wordplay.
I cannot quite see how this works, but
'great' could be 'high' (similar in meaning) and 'high' is located in the answer.
'travelling' could be 'riding' (riding is a kind of travelling) and 'riding' is present in the answer.
No letters remain.
This explanation may well be incorrect...
'on' acts as a link.
Can you help me to learn more?
(Other definitions for riding high that I've seen before include "Enjoying success" , "like a mahout?" .)