Crossword Genius

Burp is routine act, unfortunately (10)

Ross

I believe the answer is:

eructation

'burp' is the definition.
(synonyms)

'routine act unfortunately' is the wordplay.
'unfortunately' is an anagram indicator (a bad or unfortunate spelling).
'routine'+'act'='routineact'
'routineact' with letters rearranged gives 'ERUCTATION'.

'is' is the link.

I've seen this clue in The Guardian.
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