Distressed moan: a soul tormented, aberrant (9)
I believe the answer is:
anomalous
'aberrant' is the definition.
(I've seen this before)
'distressed moan a soul tormented' is the wordplay.
'distressed' is an anagram indicator.
'tormented' indicates anagramming the letters.
'moan' with letters rearranged gives 'anom'.
'soul' with letters rearranged gives 'lous'.
'anom'+'a'+'lous'='ANOMALOUS'
(Other definitions for anomalous that I've seen before include "Inconsistent, deviating from the norm" , "Abnormal, irregular" , "Deviating from normal" , "Inconsistent - out of place" , "Atypical, exceptional" .)