Answer from silly person, see, falling short (8)
I believe the answer is:
response
'answer' is the definition.
('response' can be a synonym of 'answer')
'silly person see falling short' is the wordplay.
'silly' indicates anagramming the letters.
'falling short' means to remove the last letter.
'see' with its last letter removed is 'se'.
'person' with letters rearranged gives 'respon'.
'respon'+'se'='RESPONSE'
'from' is the link.
(Other definitions for response that I've seen before include "comeback" , "Reaction, reply" , "'Answer, reply (8)'" , "Preens so by way of answer" , "See porn (anag) -- answer" .)