The most common and most likely answer to this crossword clue is the 6 letter word BEARER
I've seen this crossword clue in The Times
B
E
A
R
E
R
More clues leading to the result BEARER
- Servant that's giving birth?
- One who endures being a carrier of equipment?
- Ale bottles are mostly porter
- Artist about to put on brew for one holding cup?
- Who carries ale round topless bar?
- I am one to tolerate drug-taking naked king
- Inert gas in ale or porter
- Conveyor belt split in two, rear damaged
- Indian servant who is payable on demand?
- Will be paid when demanding to support Queen
Buddy explains!

The straight part
We know that "Who carries/?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case who carries/? = bearer.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 BEARER mean?
BEARER noun- One who, or that which, bears, sustains, or carries.
- Someone who helps carry the coffin or a dead body during a funeral procession.
- One who possesses a cheque, bond, or other notes promising payment.
- A domestic servant or palanquin carrier.
- A tree or plant yielding fruit.
- Someone who delivers a letter or message on behalf of another (especially as referred to in the letter or message).
- A strip of reglet or other furniture to bear off the impression from a blank page.
- A type or type-high piece of metal interspersed in blank parts to support the plate when it is shaved.