Maple syrup essentially put beneath one (4)
I believe the answer is:
acer
'maple' is the definition.
(I've seen this before)
'syrup essentially put beneath one' is the wordplay.
I cannot quite understand how this works, but
'one' could be 'ace' (ace has a value of one in some card games) and 'ace' is located in the answer.
A single letter 'r' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for acer that I've seen before include "Plant" , "Care about this tree" , "Type of maple" , "Tree with winged fruit" , "Tree or shrub of the maple genus" .)