The most common and most likely answer to this crossword clue is the 9 letter word EXPLORING
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More clues leading to the result EXPLORING
Buddy explains!

The straight part
We know that "Scrutinising" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case scrutinising = exploring.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EXPLORING mean?
EXPLORING verb- To seek for something or after someone.
- To examine or investigate something systematically.
- To travel somewhere in search of discovery.
- To examine diagnostically.
- To (seek) experience first hand.
- To be engaged exploring in any of the above senses.
- To wander without any particular aim or purpose.
- To seek sexual variety, to sow one's wild oats.
- The action of the verb explore.