Behold California, being in the vicinity (5)
I believe the answer is:
local
'in the vicinity' is the definition.
(I've seen this in another clue)
'behold california' is the wordplay.
'behold' becomes 'lo' (archaic exclamation meaning 'look!').
'california' becomes 'cal' (short for California).
'lo'+'cal'='LOCAL'
'being' acts as a link.
(Other definitions for local that I've seen before include "Pub - not far away" , "Relating to the neighbourhood" , "Village inn" , "belonging to particular area?" , "Nearby pub" .)