Interior decoration pretty as can be? (8)

I believe the answer is:

tapestry

I'm a little stuck... Click here to teach me more about this clue!

'interior decoration' is the definition.
'tapestry' can be an answer for 'decoration' (tapestry is a kind of decoration). I'm not certain of the 'interior' bit.

'pretty as can be?' is the wordplay.
'can be?' indicates anagramming the letters (I've seen 'can be' mean this).
'pretty'+'as'='prettyas'
'prettyas' with letters rearranged gives 'TAPESTRY'.

Can you help me to learn more?

(Other definitions for tapestry that I've seen before include "Embroidered picture" , "Woven hanging fabric with pictures" , "Woven wall-hanging" , "decoration" , "Complexity" .)

I've seen this clue in The Sun.

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