Defensive error gets cry of pain, followed by a long analysis (3,4)
I believe the answer is:
own goal
'defensive error' is the definition.
'own goal' can be an answer for 'error' (I have seen 'embarrassing error' mean 'own goal' so perhaps 'error' could also mean 'own goal'). I am unsure of the 'defensive' bit.
'cry of pain followed by a long analysis' is the wordplay.
'cry of pain' becomes 'ow' (I've seen this in other clues).
'followed by' is a charade indicator (letters next to each other).
'analysis' indicates an anagram.
'a'+'long'='along'
'along' with letters rearranged gives 'ngoal'.
'ow'+'ngoal'='OWN GOAL'
'gets' is the link.
Can you help me to learn more?
(Other definitions for own goal that I've seen before include "Unintentional self-inflicted harm" , "Self-inflicted loss" , "Shooting oneself in the foot" , "that the opposition may thank you for?" , "Costly footballing error" .)