Plain menu appearing all fancy, finally (4)

I believe the answer is:

ugly

'plain' is the definition.
(thesaurus)

'menu appearing all fancy finally' is the wordplay.
'finally' suggests the final letters.
The last letters of 'menu appearing all fancy' are 'UGLY'.

(Other definitions for ugly that I've seen before include "Unsightly, not pretty" , "Extremely unattractive" , "Not handsome or pleasing to the eye" , "Monstrous" , "Hideous" .)

I've seen this clue in The Guardian.

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