Fed up and angry upon getting it wrong (5)
I believe the answer is:
tired
'fed up' is the definition.
(thesaurus)
'angry upon getting it wrong' is the wordplay.
I cannot really understand how this works, but
'angry' could be 'ired' (I've seen this in another clue) and 'ired' is found in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for tired that I've seen before include "In need of rest" , "knackered" , "Spent" , "getting bored" , "Weary, jaded" .)