The most common and most likely answer to this crossword clue is the 5 letter word MILNE
M
I
L
N
E
More clues leading to the result MILNE
- Children’s author left in pit
- Inspiring laughter primarily, bomb as children's author
- I described ‘Piglet’ as ‘Pit’ containing ‘leg, originally‘
- Breakdown finally in short journey: getting AA
- Entertaining literature: primarily, a deep source?
- He wrote in Tamil? Never
- Nutmeg’s run into by learner – called AA initially
- Author’s explosive line retained
- Around noon, runner loses top to Reliant Robin’s inventor
- Yours truly’s penning brief line as children’s author
Buddy explains!
The straight part
We know that "Entertaining literature: primarily, a deep source" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case entertaining literature: primarily, a deep source = milne.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.