Extreme aims? (4)
I believe the answer is:
ends
'extreme aims?' is the definition.
'ends' can be an answer for 'aims?' (aim is a kind of end). I am not sure about the 'extreme' bit.
'extreme aims?' is the wordplay.
'extreme' becomes 'end' (I've seen this before).
'aims?' becomes 's' (I can't justify this - if you can you should believe this answer much more).
'end'+'s'='ENDS'
Can you help me to learn more?
(Other definitions for ends that I've seen before include "Desired results" , "See 8" , "deaths" , "Ceases, closes or dies" , "Objectives, purposes" .)