The most common and most likely answer to this crossword clue is the 6 letter word DREDGE
I've seen this crossword clue in Financial Times
D
R
E
D
G
E
More clues leading to the result DREDGE
- Clean bottom lip, following medic
- Drive on verge to clear mud
- Doctor given advantage in search for oysters?
- Remove deposits from bed of Doctor Heidegger, oddly absent
- Doctor’s keenness to clear bed
- To sprinkle with sugar is a drag
- Search taking road back to border
- Dig up dried red gelatine extract
- Scraper of muck from verge by turning of road
- E.g. Livingstone with border to explore
Buddy explains!

The straight part
We know that "Remove deposits from bed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case remove deposits from bed = dredge.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 DREDGE mean?
DREDGE noun- Any instrument used to gather or take by dragging; as:
- Very fine mineral matter held in suspension in water.
- To make a channel deeper or wider using a dredge.
- To bring something to the surface with a dredge.
- (Usually with up) to unearth.
- A large shaker for sprinkling spices or seasonings during food preparation.
- To sprinkle (food) with spices or seasonings, using a dredge.
- A mixture of oats and barley.