5 down
Right
to
turn
down
taking
head
rest
(7)
Right to turn down taking head rest (7)
hints
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checks
0
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The definition is at the end of the clue.
How the clue works
Look at rest at the end — that's your definition, in the sense of lying back. Now take turn down, which gives you DECLINE, and swap out the leading D for R (Right, taking the head's place), and you've got your answer.