Might we soon need this one as pot boils? (8)

I believe the answer is:

teaspoon

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'might we soon need this one as pot boils?' is the definition.
The answer and definition can be both quantities as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'one as pot boils?' is the wordplay.
'boils?' is an anagram indicator (I've seen 'boiling' mean this).
'one'+'as'+'pot'='oneaspot'
'oneaspot' anagrammed gives 'TEASPOON'.

Can you help me to learn more?

(Other definitions for teaspoon that I've seen before include "With OAP onset, use it at table" , "Not Aesop (anag.)" , "Domestic stirrer" , "Coffee stirrer?" , "It creates a stir" .)

I've seen this clue in The Sun.

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