Hang around with barista, regularly (4)
I believe the answer is:
wait
'hang around' is the definition.
(thesaurus)
'with barista regularly' is the wordplay.
'with' becomes 'w' (abbreviation).
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
The alternate letters of 'barista' are 'ait'.
'w'+'ait'='WAIT'
(Other definitions for wait that I've seen before include "Delay action" , "Be patient" , "Stay" , "Linger behind" , "Serve at table" .)