The most common and most likely answer to this crossword clue is the 2 plus 4 letter word IN LEAF
I've seen this crossword clue in Financial Times
I
N
L
E
A
F
More clues leading to the result IN LEAF
Buddy explains!
The straight part
We know that "recalling 24 eg at springtime" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case recalling 24 eg at springtime = in leaf.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.