Eccentric loner at health resort minding own business? (8)
I believe the answer is:
personal
'own business?' is the definition.
'personal' can be an answer for 'own' (I've seen this before). I'm unsure of the 'business?' bit.
'eccentric loner at health resort minding' is the wordplay.
I cannot quite see how this works, but
'at' could be 'on' (location) and 'on' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for personal that I've seen before include "Offensively intrusive" , "Wounding" , "Of one's private life - nobody else's business" , "Private - (of remarks) offensive" , "Concerning the self" .)