The most common and most likely answer to this crossword clue is the 4 letter word DAFT
D
A
F
T
More clues leading to the result DAFT
- Silly duke at the back of the boat
- Conscription not right — it's ridiculous
- Silly daughter getting behind
- Frivolous daughter near back of boat
- Craze returning with time – crazy indeed
- Silly fashion upset head of textiles
- Wacky first for Daniel Stern
- Primarily dim and fairly thick?
- A day behind? That’s silly!
- Back with little daughter’s potty
Buddy explains!

The straight part
We know that "crazy indeed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case crazy indeed = daft.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 DAFT mean?
DAFT adjective- Foolish, silly, stupid.
- Crazy, insane, mad.
- Gentle, meek, mild.