Sign that woman has right to leave (5)
I believe the answer is:
virgo
'sign' is the definition.
(I know that Virgo is a sign)
'woman has right to leave' is the wordplay.
'woman' becomes 'Vi' (short for Violet).
'has' says to put letters next to each other.
'right' becomes 'r' (common abbreviation).
'to leave' becomes 'go' (to go is to depart or leave).
'vi'+'r'+'go'='VIRGO'
'that' is the link.
(Other definitions for virgo that I've seen before include "A constellation, a cluster" , "Maiden" , "House" , "Sixth sign of zodiac" , "number of stars" .)