Picked up topping cocktail (9)
I believe the answer is:
margarita
'cocktail' is the definition.
(I know that Margarita is a type of cocktail)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for margarita that I've seen before include "Stiff drink" , "Tequila-based cocktail" , "Spanish girl" , "Caribbean island" , "Type of tequila cocktail" .)