Seemed unhappy when one called (5)
I believe the answer is:
cried
'called' is the definition.
('cry' can be a synonym of 'call')
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for cried that I've seen before include "Blubbed" , "Shed tears" , "Sobbed" , "Yelled" , "announced" .)