The most common and most likely answer to this crossword clue is the 5 letter word EQUAL
I've seen this crossword clue in The Times
E
Q
U
A
L
More clues leading to the result EQUAL
- Gutless Earl's clothing as Roman peer
- Peer’s endless uneasiness after end of vote
- Queen interrupting peer, though not right peer
- Peer of incomparable quality
- . Even English game bird passes over India
- Well-matched piece of pure quality
- As in Rome to stop the Spanish getting even
- Having the same value as in base 50
- Queen wearing each large uniform
- Organise quality boxing match
Buddy explains!

The straight part
We know that "Peer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case peer = equal.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 EQUAL mean?
EQUAL noun- A person or thing of equal status to others.
- State of being equal; equality.
- To be equal to, to have the same value as; to correspond to.
- To make equivalent to; to cause to match.
- To have as its consequence.
- The same in all respects.
- Exactly identical, having the same value.
- Fair, impartial.
- Adequate; sufficiently capable or qualified.
- Not variable; equable; uniform; even.
- Intended for voices of one kind only, either all male or all female; not mixed.