Crossword Genius

One caring about unfamiliarity (9)

Ross

I believe the answer is:

ignorance

'unfamiliarity' is the definition.
(thesaurus)

'one caring about' is the wordplay.
'about' indicates anagramming the letters.
'one'+'caring'='onecaring'
'onecaring' is an anagram of 'IGNORANCE'.

(Other definitions for ignorance that I've seen before include "Lack of knowledge" , "may be considered bliss" , "Lack of education" , "Being in the dark" , "Stupidity" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app