Each one out and out in club once (8)
I believe the answer is:
hacienda
'club once' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'each one out and out' is the wordplay.
'one' becomes 'i' (Roman numeral).
'out' indicates an anagram (out can mean wrong or inaccurate).
'out' is an anagram indicator (out can mean wrong or inaccurate).
'each'+'i'='eachi'
'eachi' is an anagram of 'hacie'.
'and' anagrammed gives 'nda'.
'hacie'+'nda'='HACIENDA'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for hacienda that I've seen before include "large estate in South America!" , "country estate" , "Mexican farm estate" , "farmstead" , "Ranch - large estate" .)