Crossword Genius

An insect's metamorphosis is going on continuously (9)

Ross

I believe the answer is:

incessant

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'going on continuously' is the definition.
I can't tell whether this defines the answer.

'an insect's metamorphosis' is the wordplay.
'metamorphosis' indicates anagramming the letters.
'an'+'insects'='aninsects'
'aninsects' with letters rearranged gives 'INCESSANT'.

'is' acts as a link.

Can you help me to learn more?

(Other definitions for incessant that I've seen before include "Continuous" , "Nine casts (anag) - nonstop" , "Endless" , "Since Stan was continual." , "Instances being continually repeated" .)

I've seen this clue in The Globe and Mail.
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