Doesn't get up and doesn't tell the truth (4)

I believe the answer is:

lies

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'doesn't tell the truth' is the definition.
(I've seen this in another clue)

I don't understand the remainder of the clue.

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(Other definitions for lies that I've seen before include "False statements" , "Wallows" , "Perversions of the truth" , "Untruths" , "Assumes a horizontal position" .)

I've seen this clue in The Irish News.

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