The most common and most likely answer to this crossword clue is the 9 letter word PEDOMETER
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More clues leading to the result PEDOMETER
- Aristo hosting event joined counter for walkers
- Safe to go round cupola, counting steps with this?
- Saint passing round cupola, one can tell how far he walked?
- Measuring device in safe containing two notes
- Dope confused by rhythm heard in walker’s recorder
- Top of St Paul’s fitted in gatekeeper’s measuring device
- It shows steps taken by a man going over the roof
- It records steps of saint going round vault
- Measuring device the first pope put around basilica structure
- Gatekeeper holding top of an observatory measuring device
Buddy explains!

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 PEDOMETER mean?
PEDOMETER noun- A device, often electronic, that measures the number of steps taken, and thus estimates the distance walked.
- Device used to measure the weight and height of a child