The most common and most likely answer to this crossword clue is the 3 plus 2 plus 1 plus 8 letter word ODE TO A GOLDFISH
I've seen this crossword clue in The Guardian
O
D
E
T
O
A
G
O
L
D
F
I
S
H
Buddy explains!
The straight part
We know that "creation of 6, perhaps" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case creation of 6, perhaps = ode to a goldfish.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.