Static set, somehow least focused (9)

I believe the answer is:

scattiest

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'static set somehow least focused' is the definition.
I can't tell whether this defines the answer.

'static set somehow' is the wordplay.
'somehow' is an anagram indicator.
'static'+'set'='staticset'
'staticset' is an anagram of 'SCATTIEST'.

Can you help me to learn more?

(Another definition for scattiest that I've seen is " Most mindless".)

I've seen this clue in The Mirror.

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