The most common and most likely answer to this crossword clue is the 5 plus 2 plus 3 plus 3 letter word ORDER OF THE DAY
I've seen this crossword clue in The Daily Telegraph
O
R
D
E
R
O
F
T
H
E
D
A
Y
More clues leading to the result ORDER OF THE DAY
Buddy explains!

The straight part
We know that "What’s needed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what’s needed = order of the day.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.