Timber lifting in Noah's Ark (3)
I believe the answer is:
ash
'timber' is the definition.
(I've seen this before)
'lifting in noah's ark' is the wordplay.
'lifting' says the letters should be written in reverse.
'in' says the answer is hidden in the clue.
'hsa' is hidden within 'noahs ark'.
'hsa' back-to-front is 'ASH'.
(Other definitions for ash that I've seen before include "Burnt remains; tree" , "Tree; burned residue" , "In fireplace it may be" , "Tree with keys" , "Silvery grey" .)