Choose to get rid of something ground-breaking (7)
I believe the answer is:
pickaxe
'something ground-breaking' is the definition.
I can't tell whether this defines the answer.
'choose to get rid of' is the wordplay.
'choose' becomes 'pick' (picking is a kind of choosing).
'to get rid of' becomes 'axe' (I've seen this before).
'pick'+'axe'='PICKAXE'
Can you help me to learn more?
(Other definitions for pickaxe that I've seen before include "which may cause rocky break-up" , "long-handled tool" , "Tool with a wooden handle and a heavy curved metal head" , "Mattock" , "strike-breaker?" .)
