Misinformed, I led a lot astray (4,1,3)
I believe the answer is:
told a lie
'misinformed' is the definition.
(telling a lie is a kind of misinforming)
'i led a lot astray' is the wordplay.
'astray' is an anagram indicator.
'i'+'led'+'a'+'lot'='iledalot'
'iledalot' with letters rearranged gives 'TOLD A LIE'.
I've seen this clue in The Guardian, The Globe and Mail and The Telegraph.
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