The most common and most likely answer to this crossword clue is the 4 letter word LEAF
I've seen this crossword clue in The Guardian
L
E
A
F
More clues leading to the result LEAF
- Ale drunk shown on following page
- Meadow flower's opening — a bit of foliage
- Part of meadow flower, primarily?
- One side not quite covering a page
- Six-footer heading to rear part of plane, perhaps
- In fall, one dislocated thumb
- Perrins’s partner beginning to fold sheet
- Scale, maybe, in two pages
- Odd bits of foliage arranged — or just one
- Part of plant found in grassy area, foliage primarily
Buddy explains!

The straight part
We know that "page" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case page = 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.
What does LEAF mean?
LEAF noun- The usually green and flat organ that represents the most prominent feature of most vegetative plants.
- Anything resembling the leaf of a plant.
- A sheet of any substance beaten or rolled until very thin.
- A sheet of a book, magazine, etc (consisting of two pages, one on each face of the leaf).
- (in the plural) Tea leaves.
- A flat section used to extend the size of a table.
- A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement.
- A foliage leaf or any of the many and often considerably different structures it can specialise into.
- In a tree, a node that has no descendants.
- The layer of fat supporting the kidneys of a pig, leaf fat.
- One of the teeth of a pinion, especially when small.
- Marijuana.
- (4chan) A Canadian person.
- To produce leaves; put forth foliage.
- To divide (a vegetable) into separate leaves.