Guy gets copse using waterside tree (8)
I believe the answer is:
mangrove
'waterside tree' is the definition.
'mangrove' can be an answer for 'tree' (mangrove is a kind of tree). I am not certain of the 'waterside' bit.
'guy gets copse' is the wordplay.
'guy' becomes 'man' (guy can informally mean a man).
'gets' is a charade indicator (letters next to each other).
'copse' becomes 'grove' (I've seen this in another clue).
'man'+'grove'='MANGROVE'
'using' acts as a link.
Can you help me to learn more?
(Other definitions for mangrove that I've seen before include "whose roots may be waterlogged" , "Swamp tree" , "Coastal swamp plant" , "Tree growing on tropical coasts and in muddy swamps" , "Plant growing in swamps" .)