The most common and most likely answer to this crossword clue is the 9 letter word DIPSTICKS
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Buddy explains!
The straight part
We know that "Measuring rods" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case measuring rods = dipsticks.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 DIPSTICKS mean?
DIPSTICKS noun- A stick or rod used to measure the depth of a liquid. Often used to check the level at which a liquid in an opaque or inaccessible tank or reservoir stands; gauge.
- A penis.
- A useless person of inferior intellect; a dipshit.