Health precaution a rare condition's brought about? (6,9)
I believe the answer is:
cordon sanitaire
'health precaution' is the definition.
The definition suggests a singular noun which matches the answer.
'a rare condition's brought about?' is the wordplay.
'brought about?' indicates anagramming the letters (I've seen 'brought about' mean this).
'a'+'rare'+'conditions'='arareconditions'
'arareconditions' is an anagram of 'CORDON SANITAIRE'.
Can you help me to learn more?
(Another definition for cordon sanitaire that I've seen is " barrier to infection".)