Long-winded government-speak? Floundering fleabag fibs regularly (9)
I believe the answer is:
bafflegab
'long-winded government-speak?' is the definition.
(term for bureaucratic jargon)
'floundering fleabag fibs regularly' is the wordplay.
'floundering' indicates anagramming the letters (I've seen this in other clues).
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternating letters of 'fibs' are 'fb'.
'fleabag'+'fb'='fleabagfb'
'fleabagfb' anagrammed gives 'BAFFLEGAB'.
(Another definition for bafflegab that I've seen is " The jargon".)