Wine in cooler shown to the left alongside last of Shiraz (9)
I believe the answer is:
zinfandel
'wine' is the definition.
(zinfandel is a kind of wine)
'in cooler shown to the left alongside last of shiraz' is the wordplay.
'cooler' becomes 'fan' (something which cools).
'shown' becomes 'led'.
'to the left' says the letters should be written backwards (letters written from right to left).
'alongside' says to put letters next to each other.
'last of' says to take the final letters.
The last letter of 'shiraz' is 'z'.
'led' reversed gives 'del'.
'in'+'fan'+'del'='infandel'
'infandel' put after 'z' is 'ZINFANDEL'.
(Other definitions for zinfandel that I've seen before include "Californian wine grape" , "Black grape grown in California" , "Californian grape variety" , "Dry wine" , "blush" .)