Lass has wrong rig left (4)
'lass' is the definition.
'wrong rig left' is the wordplay.
'wrong' is an anagram indicator.
'left' becomes 'l' (common abbreviation).
'rig' is an anagram of 'gir'.
'has' is the link.
(Other definitions for girl that I've seen before include "Young lady", "See 5", "Maidservant", "Female child", "Young woman".)