End of newspaper? I was first to get annoyed (5)
I believe the answer is:
riled
'annoyed' is the definition.
('rile' can be a synonym of 'annoy')
'end of newspaper? i was first' is the wordplay.
'end of' suggests the final letters.
'was first' becomes 'led'.
The last letter of 'newspaper' is 'r'.
'r'+'i'+'led'='RILED'
'to get' acts as a link.
(Other definitions for riled that I've seen before include "get angry" , "Vexed" , "Annoyed" , "Irritated, provoked" , "Cross" .)