She's quite angry in the morning (5)
I believe the answer is:
madam
'she's quite' is the definition.
I can't judge whether this definition defines the answer.
'angry in the morning' is the wordplay.
'angry' becomes 'mad' (similar in meaning).
'in the morning' becomes 'am' (AM on a clock).
'mad'+'am'='MADAM'
Can you help me to learn more?
(Other definitions for madam that I've seen before include "'Call Me ---' (I. Berlin)" , "Woman of standing" , "Courteous form of address to a woman" , "Formal address to a woman - precocious little girl" , "Woman with status - girl with bad manners" .)