The most common and most likely answer to this crossword clue is the 6 letter word TIERED
I've seen this crossword clue in Financial Times
T
I
E
R
E
D
More clues leading to the result TIERED
- Couple regretted leaving university in rows
- Having rows, looking angry after match
- Restrained around queen, arranged in ranks
- Match Liverpool player on many levels
- Connection rare in layers
- Blushing couple initially rowed
- Bored with European intervening in rows
- Restrain revolutionary in ranks
- Having rows with socialist upholding obligation
- Draw colour in layers
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 TIERED mean?
TIERED verb- To arrange in layers.
- To cascade in an overlapping sequence.
- To move (data) from one storage medium to another as an optimization, based on how frequently it is accessed.
- Having or made of tiers