How a witness appears to Noah in disguise (2,4)
I believe the answer is:
on oath
'how a witness' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'to noah in disguise' is the wordplay.
'in disguise' is an anagram indicator.
'to'+'noah'='tonoah'
'tonoah' is an anagram of 'ON OATH'.
'appears' acts as a link.
Can you help me to learn more?
(Other definitions for on oath that I've seen before include "Bound to speak the truth" , "Sworn to speak the truth" .)