Particular southern sports clubs regularly reversed coin flip (8)
I believe the answer is:
specific
'particular' is the definition.
(I know that particular can be written as specific)
'southern sports clubs regularly reversed coin flip' is the wordplay.
'southern' becomes 's' (abbreviation).
'sports' becomes 'pe' (Physical Education).
'clubs' becomes 'c' (abbreviation in card games).
'regularly reversed coin flip' becomes 'ific' (I can't justify this - if you can you should give a lot more credence to this answer).
's'+'pe'+'c'+'ific'='SPECIFIC'
Can you help me to learn more?
(Other definitions for specific that I've seen before include "Detailed" , "Particular, exact" , "remedy" , "Peculiar" , "Precise, clearly defined" .)