(someone) have not a clue

Translations
(кто-то) не имеет ни малейшего понятия
He says he has not a clue about what happened.
Он говорит, что не имеет ни малейшего понятия о том, что произошло.
Definitions
This phrase means that someone has no knowledge or understanding about a particular subject or situation; they are completely unaware or ignorant about it.
Words
someone

pronoun
кто то
has

verb
имеет
not

adverb
не
a

article or possessive pronoun
один
clue

noun
понятие