Run into spoilt oiks this writer finds annoying ... (7)
I believe the answer is:
irksome
'annoying' is the definition.
(I've seen this before)
'run into spoilt oiks this writer' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'into' indicates putting letters inside.
'spoilt' indicates anagramming the letters.
'this writer' becomes 'me' (the person who wrote the clues).
'oiks' is an anagram of 'ikso'.
'r' put within 'ikso' is 'irkso'.
'irkso'+'me'='IRKSOME'
'finds' is the link.
(Other definitions for irksome that I've seen before include "bugging" , "Burdensome and tedious" , "Tiresome, irritating" , "Tediously annoying" , "Annoying or tiresome" .)