Laugh and cry (6)
I believe the answer is:
scream
I believe this is a double definition.
'laugh' is the first definition.
(I know that scream is a type of laugh)
'cry' is the second definition.
(I know that scream is a type of cry)
'and' acts as a link.
(Other definitions for scream that I've seen before include "Hilarious character" , "A shrill cry of fright" , "Make high shrill sound as from fear" , "Comic" , "Call for" .)