Spiritual leader absorbed in anima mundi (4)
I believe the answer is:
imam
'spiritual leader' is the definition.
(prayer leader in Islam)
'absorbed in anima mundi' is the wordplay.
'absorbed in' indicates a hidden word.
'IMAM' is hidden in the letters of 'anima mundi'.
(Other definitions for imam that I've seen before include "Islamic prayer leader" , "Muslim prayer leader" , "Man who leads prayers in a mosque" , "Man leading prayers in a mosque" , "Islamic minister" .)