Apex domains cannot have CNAME records.
Question and response
Question
dig clara.net. NS
Answer
clara.net. 5 NS ns0.clara.net.
clara.net. 5 NS ns1.clara.net.
clara.net. 5 NS ns2.clara.net.
Authority
The response has no authority records.
Additional
ns0.clara.net. 5 A 185.77.72.10
ns1.clara.net. 5 A 185.77.72.11
ns2.clara.net. 5 A 195.245.201.35
ns0.clara.net. 5 AAAA 2001:67c:1088:0:0:0:0:10
ns1.clara.net. 5 AAAA 2001:67c:1088:0:0:0:0:11
ns2.clara.net. 5 AAAA 2001:a88:0:fffa:0:0:0:3
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0