Rather younger elder? (7)

I believe the answer is:

sapling

'rather younger elder?' is the definition.
(a sapling is a young tree, eg an elder tree)

This is all the clue.

(Other definitions for sapling that I've seen before include "Young slender tree" , "Lapsing into a young tree" , "Little tree" , "Baby tree" , "Poetic youth" .)

I've seen this clue in The Sun and The Times.

Want a hint initially instead of a full solution? Install my app