The most common and most likely answer to this crossword clue is the 6 letter word TESTER
I've seen this crossword clue in Financial Times
T
E
S
T
E
R
More clues leading to the result TESTER
- Examiner perhaps coming in quite stern
- Person checking street out
- Right about catching Illyrian fool heading off with old sixpenny piece
- One checking a canopy
- Examiner is in wrong street
- One carrying out an examination on canopy
- Old coin examiner
- One examining, irritable finishing early at sign of hesitation
- Experimenter and demonstrator dismissing expert
- Form of street canopy
Buddy explains!

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 TESTER mean?
TESTER noun- A canopy over a bed.
- Something that overhangs something else; especially a canopy or soundboard over a pulpit.
- A person who administers a test.
- A device used for testing.
- A punishment of 25 lashes (strokes of a whip) across a person′s back.
- A sample of perfume available in a shop for customers to try before they buy.
- A cyclist who focuses on success in time trials.
- An old French silver coin.
- A sixpence.