Gets excited over detailed porcelain plates (8)

I believe the answer is:

etchings

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'plates' is the definition.
(etching is a kind of plate)

'gets excited over detailed porcelain' is the wordplay.
'excited' is an anagram indicator.
'over' is an insertion indicator.
'detailed porcelain' becomes 'chin' (I can't justify this - if you can you should believe this answer much more).
'gets' with letters rearranged gives 'etgs'.
'etgs' placed around 'chin' is 'ETCHINGS'.

Can you help me to learn more?

(Other definitions for etchings that I've seen before include "Impressive marks obtained" , "Engravings" , "Artwork" , "Art prints" , "works of art" .)

I've seen this clue in The Guardian.

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