Trap set among pine trees (3)
I believe the answer is:
net
'trap set' is the definition.
'net' can be an answer for 'trap' (I've seen this before). I am not certain of the 'set' bit.
'among pine trees' is the wordplay.
'among' says the answer is hidden in the clue.
'NET' is hidden in the letters of 'pine trees'.
Can you help me to learn more?
(Other definitions for net that I've seen before include "Open-mesh fabric" , "Open mesh; catch" , "Clear profit or gain" , "Fish trap after deductions?" , "Tennis court feature" .)