Olga's crazy objective (4)

I believe the answer is:

goal

'objective' is the definition.
(thesaurus)

'olga's crazy' is the wordplay.
'crazy' is an anagram indicator.
'olga' anagrammed gives 'GOAL'.

(Other definitions for goal that I've seen before include "Aim and objective" , "End" , "Target (best not one's own!)" , "Aim or purpose" , "Aim, desired result" .)

I've seen this clue in the Evening Standard.

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