High priest of soul maybe told about dancing (13)
I believe the answer is:
terpsichorean
'about dancing' is the definition.
'high priest of soul maybe told' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'priest' is 'terpsi' which is present in the answer.
'of' could be 'o' and 'o' is present in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for terpsichorean that I've seen before include "Related to dancing - chain store rep (anag)" , "of dance numbers" , "become a dancer" , "Relating to dancing" .)