Czech bachelor languishing in a home (8)
I believe the answer is:
bohemian
'czech' is the definition.
(I've seen this before)
'bachelor languishing in a home' is the wordplay.
'bachelor' becomes 'b' (abbreviation e.g. BA=Bachelor of Arts).
'languishing' indicates anagramming the letters (languish can mean decay).
'in'+'a'+'home'='inahome'
'inahome' is an anagram of 'ohemian'.
'b'+'ohemian'='BOHEMIAN'
(Other definitions for bohemian that I've seen before include "Unconventional artist" , "Czech" , "Unconventional type" , "Artistic, unconventional" , "artist who defies convention" .)