Strange man or woman (5)
I believe the answer is:
norma
'woman' is the definition.
'strange man or' is the wordplay.
'strange' is an anagram indicator.
'man'+'or'='manor'
'manor' is an anagram of 'NORMA'.
(Other definitions for norma that I've seen before include "Roman (anag) -- opera" , "small group of stars" , "Girl" , "Bellini opera - girl's name" , "Bellini heroine" .)