Extremely generous (6)
I believe the answer is:
lavish
'extremely generous' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for lavish that I've seen before include "Lash around Vi is extravagant (6)" , "Luxurious" , "Generous, profuse" , "Spend(ing) generously" , "Plentiful or extravagent" .)