The most common and most likely answer to this crossword clue is the 5 letter word RECUR
I've seen this crossword clue in Independent
R
E
C
U
R
More clues leading to the result RECUR
- Repeat section of core curriculum
- Happen again in playground, initially unexpected result
- Come back about worthless dog
- On vacation, Ronnie Barker's to make comeback
- Come back again about aggressive dog
- Come back from Peru? Certainly, heading west
- Come back again about dog
- . Regularly come round about a dog
- Remove dry pieces from red curry — they can repeat
- Touching wretch to appear again
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 RECUR mean?
RECUR verb- To have recourse (to) someone or something for assistance, support etc.
- To happen again.
- To recurse.