A girl to avoid (4)
I believe the answer is:
miss
I believe this is a double definition.
'a girl' is the first definition.
(term of address for an unmarried woman)
'avoid' is the second definition.
(miss can mean to avoid)
'to' acts as a link.
(Other definitions for miss that I've seen before include "Yearn for" , "Fail to meet - girl" , "Fail to reach" , "Single girl" , "Damsel" .)