Wine lover Jo is taking in Los Angeles (10)
I believe the answer is:
beaujolais
'wine' is the definition.
(Beaujolais is an example)
'lover jo is taking in los angeles' is the wordplay.
'lover' becomes 'beau' (beau is a kind of lover).
'taking in' indicates putting letters inside.
'los angeles' becomes 'la'.
'jo'+'is'='jois'
'jois' placed around 'la' is 'jolais'.
'beau'+'jolais'='BEAUJOLAIS'
(Other definitions for beaujolais that I've seen before include "drink" , "Light red wine from south-east France" , "French light red wine" , "Burgundy wine" .)