Lounge in Hungary regularly less appealing (6)
I believe the answer is:
uglier
'less appealing' is the definition.
(I've seen this in another clue)
'lounge in hungary regularly' is the wordplay.
'lounge' becomes 'lie' (as in to lounge or lie around).
'in' is an insertion indicator.
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternating letters of 'hungary' are 'ugr'.
'lie' placed into 'ugr' is 'UGLIER'.
(Other definitions for uglier that I've seen before include "More displeasing to the sight" , "more revolting" , "Not so pretty" , "with worse features" , "More horrible" .)