Reclines say, after change of course (11)

I believe the answer is:

necessarily

'of course' is the definition.
(thesaurus)

'reclines say after change' is the wordplay.
'after' means one lot of letters go next to another.
'change' is an anagram indicator.
'reclines'+'say'='reclinessay'
'reclinessay' with letters rearranged gives 'NECESSARILY'.

(Another definition for necessarily that I've seen is " of course".)

I've seen this clue in The Telegraph.

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