Eccentric soul madly pursuing an unclothed woman (9)
I believe the answer is:
anomalous
'eccentric' is the definition.
(thesaurus)
'soul madly pursuing an unclothed woman' is the wordplay.
'madly' indicates anagramming the letters.
'pursuing' means one lot of letters go next to another.
'unclothed' means to look at the middle letters.
The middle of 'woman' is 'oma'.
'soul' anagrammed gives 'lous'.
'an'+'oma'='anoma'
'lous' put after 'anoma' is 'ANOMALOUS'.
(Other definitions for anomalous that I've seen before include "Inconsistent - out of place" , "Abnormal, irregular" , "Abnormal, deviant" , "Atypical, exceptional" , "Inconsistent, deviating from the norm" .)