Take in some cabs or buses (6)
I believe the answer is:
absorb
'take in' is the definition.
(synonyms)
'some cabs or buses' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'ABSORB' is hidden within 'cabs or buses'.
(Other definitions for absorb that I've seen before include "'Imbibe, assimilate (6)'" , "Take in, water or knowledge" , "Occupy the mind fully as good book will" , "Take in, soak up." , "Take or drink in" .)