Choose to get rid of long-handled tool (7)
I believe the answer is:
pickaxe
'long-handled tool' is the definition.
(I've seen this before)
'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 in another clue).
'pick'+'axe'='PICKAXE'
(Other definitions for pickaxe that I've seen before include "Tool to break rocks" , "weapon" , "Wooden-handled iron tool with a curved head, pointed at both ends" , "Mattock" , "it's needed to break new ground" .)