NHS boiler becoming unpredictable — nuclear scientist needed (5,4)

I believe the answer is:

niels bohr

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'unpredictable nuclear scientist needed' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'nhs boiler becoming' is the wordplay.
'becoming' indicates anagramming the letters.
'nhs'+'boiler'='nhsboiler'
'nhsboiler' anagrammed gives 'NIELS BOHR'.

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(Other definitions for niels bohr that I've seen before include "Danish physicist" , "14 [GREAT DANE]" , "Atomic scientist" .)

I've seen this clue in The Independent.

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