
1) Irish girl name 2) Irish goddess 3) Tutelary deity 4) War goddess 
Found on 
https://www.crosswordclues.com/clue/banba

 In Irish mythology, Banba (modern spelling: Banbha, pronounced @), daughter of Ernmas of the Tuatha Dé Danann, is the patron goddess of Ireland. She was part of an important triumvirate of goddesses. According to Seathrún Céitinn she worshipped Macha, who is also sometimes named as a daughter of Ernmas. The two goddesses may therefore be seen a...
Found on 
http://en.wikipedia.org/wiki/Banba
  No exact match found.