It's only hearsay that outsized pigs can fly around! (6)
I believe the answer is:
gossip
'hearsay that outsized pigs can fly around' is the definition.
'gossip' can be an answer for 'hearsay' (I've seen this in another clue). I am not certain of the remainder of the definition.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for gossip that I've seen before include "Dish the dirt" , "Blatherskite" , "Casual talk about other people" , "Malicious talk about other people" , "Scandalmonger" .)