Crossword Genius

Some devil erupts, getting more unpleasant (5)

Ross

I believe the answer is:

viler

'more unpleasant' is the definition.
('vile' can be a synonym of 'unpleasant')

'some devil erupts getting' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'VILER' is hidden within 'devil erupts getting'.

(Other definitions for viler that I've seen before include "...more diabolical" , "More nasty" , "More reprehensible" , "Liver (anag.)" .)

I've seen this clue in The Telegraph.
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