A hoot and a cry of fear (6)
I believe the answer is:
scream
I believe this clue is a double definition.
'a hoot' is the first definition.
(both can mean a good time)
'a cry of fear' is the second definition.
(I've seen this before)
'and' is the link.
(Other definitions for scream that I've seen before include "Sound terrified" , "Loud shrill cry" , "card" , "Riot" , "Utter a sudden loud cry" .)