Wes is confused about support for members of the Mafia (4,4)
I believe the answer is:
wise guys
'members of the mafia' is the definition.
The answer and definition can be both people as well as being plural nouns.
Perhaps they are linked in a way I don't understand?
'wes is confused about support' is the wordplay.
'confused' is an anagram indicator.
'about' indicates putting letters inside.
'support' becomes 'guy' (guy is a kind of support).
'wes'+'is'='wesis'
'wesis' with letters rearranged gives 'wises'.
'wises' placed around 'guy' is 'WISE-GUYS'.
'for' acts as a link.
Can you help me to learn more?
(Another definition for wise guys that I've seen is " Smart Alecs?".)