Guacamole ingredient (4)
'guacamole ingredient' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for avocado that I've seen before include "Green-fleshed fruit" , "Dark green fruit like posh pear" , "Alligator pear" , "A posh tropical pear" , "Fruity colour" .)
(Other definitions for lime that I've seen before include "Round green fruit or a linden tree" , "Having no money" , "Kind of tree or substance used in cement" , "Caustic calcium" , "Hang about in Jamaica" .)