Crossword Genius

Boat with advanced instrument for making deep soundings (4)

Ross

I believe the answer is:

tuba

I'm a little stuck... Click here to teach me more about this clue!

'instrument for making deep soundings' is the definition.
I can't judge whether this definition defines the answer.

'boat with advanced' is the wordplay.
'boat' becomes 'tub' (tub could historically mean a small boat).
'with' is a charade indicator (letters next to each other).
'advanced' becomes 'a' (abbreviation).
'tub'+'a'='TUBA'

Can you help me to learn more?

(Other definitions for tuba that I've seen before include "This loud instrument" , "Valved instrument" , "Brass band instrument" , "Noisy instrument" , "item band might play" .)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.