Diplomat -- American with business degrees -- getting unhappy with men (10)
I believe the answer is:
ambassador
'diplomat' is the definition.
(ambassador is a kind of diplomat)
'american with business degrees getting unhappy with men' is the wordplay.
'american' becomes 'Am' (abbreviation in some contexts).
'with business degrees getting' becomes 'bas' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'unhappy' becomes 'sad' (associated in meaning).
'with' is a charade indicator (letters next to each other).
'men' becomes 'OR' (military abbreviation for Other Ranks).
'am'+'bas'+'sad'+'or'='AMBASSADOR'
Can you help me to learn more?
(Other definitions for ambassador that I've seen before include "Overseas diplomat" , "accredited diplomat" , "Senior diplomat" , "voice?" , "Foreign representative" .)