Crossword Genius

Interrupted by an objection, I tend to go wrong (6,2)

Ross

I believe the answer is:

butted in

'interrupted' is the definition.
(butting in is a kind of interrupting)

'an objection i tend to go wrong' is the wordplay.
'an objection' becomes 'but' (as in 'no ifs, no buts').
'to go wrong' is an anagram indicator.
'i'+'tend'='itend'
'itend' anagrammed gives 'tedin'.
'but'+'tedin'='BUTTED IN'

'by' is the link.

I've seen this clue in the Evening Standard.
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