Career crazily with son, guzzling new wine (8)
I believe the answer is:
sancerre
'wine' is the definition.
(I've seen this before)
'career crazily with son guzzling new' is the wordplay.
'crazily with' indicates an anagram.
'son' becomes 's'.
'guzzling' indicates putting letters inside (I've seen this in other clues).
'new' becomes 'n'.
'career' mixed up with 's' makes 'sacerre'.
'sacerre' going around 'n' is 'SANCERRE'.
(Other definitions for sancerre that I've seen before include "Type of French white wine" , "Light French white wine" .)