Replacement for paper star (5,4)

I believe the answer is:

spare part

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'replacement for paper star' is the definition.
I can't judge whether this definition defines the answer.

'replacement for paper star' is the wordplay.
'replacement for' indicates anagramming the letters.
'paper'+'star'='paperstar'
'paperstar' is an anagram of 'SPARE-PART'.

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(Other definitions for spare part that I've seen before include "Type of surgery" , "Replacement component" , "something put in machine?" , "Extra component for machine" .)

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