The most common and most likely answer to this crossword clue is the 5 plus 3 plus 5 letter word AGAIN AND AGAIN
A
G
A
I
N
A
N
D
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N
More clues leading to the result AGAIN AND AGAIN
- A profit shown twice? It’s interminable …
- Double a profit repeatedly
- A profit on two separate occasions or maybe several times?
- Repeated a profit with a profit
- A profit with a similar one repeatedly
- One has interest perhaps on a girl, and disturbed inside — proceeds without poise repeatedly
- A land with military commander elected time after time
Buddy explains!

The straight part
We know that "repeatedly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case repeatedly = again and again.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.