How might one force entry, murder getting a drink here? (7)

I believe the answer is:

crowbar

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'how might one force entry murder getting a drink here?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

This is the entire clue.

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(Other definitions for crowbar that I've seen before include "one able to afford purchase" , "Iron lever for prising" , "Heavy iron lever" , "that can exert powerful leverage" , "Strong iron rod used as lever" .)

I've seen this clue in The Guardian.

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