Twig, for example, rolled over by bird (3,2)
I believe the answer is:
get it
'twig' is the definition.
(synonyms)
'example rolled over by bird' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'rolled over' says the letters should be written in reverse.
'by' says to put letters next to each other.
'bird' becomes 'tit' (tit is a kind of bird).
'eg' written backwards gives 'ge'.
'ge'+'tit'='GET IT?'
'for' acts as a link.
(Other definitions for get it that I've seen before include "twig?" , "See the point" , "Be punished" , "Understand" .)