Greeted loudly (and icily?) (6)
I believe the answer is:
hailed
'greeted' is the definition.
(hailing is a kind of greeting)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for hailed that I've seen before include "Called to or summoned - say taxi" , "Greeted or saluted" , "Greeted like ancient Romans" , "Called, a cab say" , "acknowledged" .)