Clue: Charger needing drink in Puerto Rico (7)
Answer: PLATTER
Explanation: Charger needing drink in Puerto Rico (7)
**LATTE **("drink") in **P**(uerto) **R**(ico) 
Hadn't come across "charger" meaning a "shallow disc" before, but it's in at least one online dictionary. I don't have my Chambers to hand, but will check to see if it's in there later.