The most common and most likely answer to this crossword clue is the 10 letter word KEELHAULED
I've seen this crossword clue in The Guardian
K
E
E
L
H
A
U
L
E
D
Buddy explains!
The straight part
We know that "Reprimanded" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case reprimanded = keelhauled.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 KEELHAULED mean?
KEELHAULED verb- To punish by dragging under the keel of a ship.
- To rebuke harshly.