The most common and most likely answer to this crossword clue is the 7 letter word ITERATE
I've seen this crossword clue in The Times
I
T
E
R
A
T
E
More clues leading to the result ITERATE
- Repeat it before scoundrel appears in middle of week
- Parrot learned after scratching head
- Say again: educated Liberal must go
- Learned lecturer leaving repeat
- Do repeats of it start to earn respect?
- Repeat? Learned line removed
- Practice head-rhyme, say, with everybody going for repeat
- Do over American couple snubbed by judge
- Learned head removed – say again
- Say again — educated Liberal must go
Buddy explains!

The straight part
We know that "Repeat" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case repeat = iterate.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 ITERATE mean?
ITERATE noun- A function that iterates
- To perform or repeat an action on each item in a set
- To perform or repeat an action on the results of each such prior action
- To utter or do a second time or many times; to repeat.
- To repeat an activity, making incremental changes each time
- Said or done again; repeated.