Saw differently after nonsense gets laughs (7)
I believe the answer is:
guffaws
'laughs' is the definition.
(guffaw is a kind of laugh)
'saw differently after nonsense' is the wordplay.
'differently' indicates an anagram.
'after' means one lot of letters go next to another.
'nonsense' becomes 'guff' (I've seen this before**).
'saw' with letters rearranged gives 'aws'.
'aws' put after 'guff' is 'GUFFAWS'.
'gets' is the link.
(Other definitions for guffaws that I've seen before include "bellows perhaps" , "Roars" .)