How regent acts? It demands explanation! (6)
I believe the answer is:
asking
This could be a double definition.
'how regent acts?' is the first definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'it demands explanation' is the second definition.
The definition suggests a singular noun which matches the answer.
Can you help me to learn more?
(Other definitions for asking that I've seen before include "Proposing" , "It demands explanation!" , "Begging" , "Enquiring" , "Inquiry" .)