as flag —

 my daughter who is having beautiful creeper like waist (and him) —

 my daughter who is like a beautiful creeper (and he, both of them) —

cruel entity —

the cruel person, rāvaṇa- his —

having as flag to manifest his great protection —

one who has it (garuda) in his flag —

ŏh one who is having periya thiruvadi (garudāzhvār) as his vehicle and the flag (so he can visit his devotees and give them pleasure when they see him from distance)! —