Cab alternative (3)
(Other definitions for pinot that I've seen before include "Variety of grape used for Burgundies and champagnes" , "Black or white grape variety" , "Wine-making grape" , "Variety of wine grape" , "Red or white ingredient" .)
(Other definitions for syrah that I've seen before include "Black grape variety" , "Grape variety (Shiraz)" , "Dark-skinned red wine grape" , "Red grape variety" .)
'cab alternative' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for uber that I've seen before include "Taxi company" , "App-based alternative to taxis" .)