Hellish nan playing with rifle (8)

I believe the answer is:

infernal

'hellish' is the definition.
(synonyms)

'nan playing with rifle' is the wordplay.
'playing with' indicates anagramming the letters.
'nan' mixed up with 'rifle' can make 'INFERNAL'.

(Other definitions for infernal that I've seen before include "Devilish" , "Relating to the underworld" , "To do with hell or informally tiresome" , "Blessed; damned" , "To do with hell, or informally detestable" .)

I've seen this clue in The Telegraph.

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