More buses brought back, restricting taxi operator (4)
I believe the answer is:
uber
'restricting taxi operator' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'more buses brought back' is the wordplay.
'brought' indicates a hidden word (I've seen 'bringing' mean this).
'back' is a reversal indicator.
'rebu' can be found hidden inside 'more buses'.
'rebu' written backwards gives 'UBER'.
Can you help me to learn more?
(Other definitions for uber that I've seen before include "App-based alternative to taxis" , "Taxi company" .)