Eyes up table, possibly being out to improve appearance? (6,5)

I believe the answer is:

beauty sleep

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'out to improve appearance?' is the definition.
I can't tell whether this defines the answer.

'eyes up table possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'eyes'+'up'+'table'='eyesuptable'
'eyesuptable' is an anagram of 'BEAUTY-SLEEP'.

'being' is the link.

Can you help me to learn more?

(Other definitions for beauty sleep that I've seen before include "Rest needed to keep one looking young?" , "What we all need at night to look our best" , "to bed early for this" , "Forty winks for those wanting to look good" , "Slumber before midnight" .)

I've seen this clue in The Times.

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