The most common and most likely answer to this crossword clue is the 9 letter word RECONCILE
I've seen this crossword clue in The Times
R
E
C
O
N
C
I
L
E
More clues leading to the result RECONCILE
- Square one circle at random
- Energy concentrated in anger? Make friends again
- Make compatible drug, concentrated in nettle
- Make friends again with cleric one upset
- One circle converted to square
- Licence or otherwise accommodate
- Harmonise timeless electronic composition
- Forgive and forget or start to eventually cheat around in anger
- Bury the hatchet relic once repaired
Buddy explains!

The straight part
We know that "Make friends again" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case make friends again = reconcile.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 RECONCILE mean?
RECONCILE verb- To restore a friendly relationship; to bring back to harmony.
- To make things compatible or consistent.
- To make the net difference in credits and debits of a financial account agree with the balance.