Attack one to get occupation of the shack (3,3)
I believe the answer is:
hit out
'shack' is the definition.
Both the definition and answer are verbs in their base form.
Maybe there's a link between them I don't understand?
'attack one to get occupation of' is the wordplay.
'attack' becomes 'hit' (hitting is a kind of attacking).
'one to get' is a charade indicator (letters next to each other).
'occupation of' becomes 'out' (I can't explain this - if you can you should give a lot more credence to this answer).
'hit'+'out'='HIT OUT'
'the' is the link.
Can you help me to learn more?
(Other definitions for hit out that I've seen before include "Make a strong attack" , "Be severely critical of" , "Aim a blow, perhaps in self-defence" , "Launch a verbal attack" , "Attack verbally" .)