The most common and most likely answer to this crossword clue is the 5 plus 3 letter word PETER PAN
I've seen this crossword clue in Financial Times
P
E
T
E
R
P
A
N
More clues leading to the result PETER PAN
- Play safe with hammer
- Eternal youth to dwindle and be exhausted
- Play safe with cooking utensil
- Crude apprentice, no longer in charge: He'll never grow up!
- Perpetual child‘s play
- Eternal youth has to fade – savage!
- Ageless saint and god
- Novel writer encapsulates dreadful pirate sacking island
- Safe to criticise one who never grew up
- D made the boy move around
Buddy explains!

The straight part
We know that "D made/D made" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case d made/d made = peter pan.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.