We had this wild Freudian impulse! (5,4)
I believe the answer is:
death wish
'impulse' is the definition.
(I know that death wish is a type of impulse)
'we had this wild' is the wordplay.
'wild' indicates an anagram.
'we'+'had'+'this'='wehadthis'
'wehadthis' with letters rearranged gives 'DEATH WISH'.
'freudian' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for death wish that I've seen before include "Desire to pass on" , "Unconscious desire to end it all" , "Reason for very reckless acts?" , "destructive feeling" , "Desire for self-annihilation" .)