Corporation's year under pressure from drug ring (3-5)
I believe the answer is:
pot-belly
'corporation's' is the definition.
(corporation can humorously mean belly fat)
'year under pressure from drug ring' is the wordplay.
'year' becomes 'y'.
'under' means one lot of letters go next to another (in a down clue, some letters go below others).
'pressure from drug' becomes 'pot' (I can't explain this - if you can you should give a lot more credence to this answer).
'ring' becomes 'bell' (both can mean to call on the phone).
'pot'+'bell'='potbell'
'y' put after 'potbell' is 'POT-BELLY'.
Can you help me to learn more?
(Another definition for pot-belly that I've seen is " Protruding stomach".)