Waits while one bed's made up (5)

I believe the answer is:

bides

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'waits while' is the definition.
'bides' can be an answer for 'waits' (I've seen this before). I'm unsure of the 'while' bit.

'one bed's made up' is the wordplay.
'one' becomes 'i' (Roman numeral).
'made up' indicates anagramming the letters.
'i'+'beds'='ibeds'
'ibeds' with letters rearranged gives 'BIDES'.

Can you help me to learn more?

(Other definitions for bides that I've seen before include "Waits a while" , "remains" .)

I've seen this clue in The Globe and Mail.

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