0171: Clue for Lorick #17, Im a satire once biting and wise

Does Lorick #17 still bedevil you? Here it is again:

I'm a satire once biting and wise

now by yahoos reduced, bowdlerized

to a tale of a giant,

and wee folk defiant,

my allegorical eggs- pasteurized

Hint:

you may know me as a yarn of small folk and the stranger they yoked

Can you solve this lorick in time?