The most common and most likely answer to this crossword clue is the 6 letter word ABSORB
I've seen this crossword clue in The Times
A
B
S
O
R
B
More clues leading to the result ABSORB
- Sailors at ball drink up
- Consume a British dessert, but not last two portions
- Digest the sphere of a sailor?
- Digest crab? Only half – brother’s thrown up
- Take in the sailor’s world
- Take in seaman and siblings briefly wanting lift
- Jack’s brother about to imbibe
- Take in type of blood brothers set-up
- Take in muscles on brother’s back
- Incorporate muscle, getting brothers to retreat
Buddy explains!

The straight part
We know that "Digest" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case digest = absorb.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 ABSORB mean?
ABSORB verb- To include so that it no longer has separate existence; to overwhelm; to cause to disappear as if by swallowing up; to incorporate; to assimilate; to take in and use up.
- To engulf, as in water; to swallow up.
- To suck up; to drink in; to imbibe, like a sponge or as the lacteals of the body; to chemically take in.
- To take in energy and convert it, as
- To engross or engage wholly; to occupy fully
- To occupy or consume time.
- Assimilate mentally.
- To assume or pay for as part of a commercial transaction.
- To defray the costs.
- To accept or purchase in quantity.