Key points involving cricketer in discussion (6)
I believe the answer is:
debate
'discussion' is the definition.
(debate is a kind of discussion)
'key points involving cricketer' is the wordplay.
'key' becomes 'd' (I've seen this in other clues**).
'points' becomes 'ee'.
'involving' indicates putting letters inside.
'cricketer' becomes 'bat' (I've seen this before).
'ee' going around 'bat' is 'ebate'.
'd'+'ebate'='DEBATE'
'in' is the link.
(Other definitions for debate that I've seen before include "Formal discussion through argument" , "Discussion throung argument" , "Public argument" , "Discuss through argument" , "Heated discussion" .)