Loudly sand wood (5)
I believe the answer is:
beech
'wood' is the definition.
(I know that beech is a type of wood)
'loudly sand' is the wordplay.
'loudly' indicates a 'sounds like' (homophone) clue (when spoken - not silently).
'sand' becomes 'beach' (sand can refer to a sandy beach).
'beach' sounds like 'BEECH'.
(Other definitions for beech that I've seen before include "Type of tree" , "for mast?" , "Wood" , "Timber tree" , "Nut-bearing tree" .)