Decreasing the felling of (7,4)

I believe the answer is:

cutting down

I'm a little stuck... Click here to teach me more about this clue!

'decreasing the felling of' is the definition.
'cutting down' can be an answer for 'decreasing' (cutting down is a kind of decreasing). I'm not sure about the 'the felling of' bit.

'decreasing the felling of' is the wordplay.
'decreasing' becomes 'cutting' (cutting is a kind of decreasing).
'the felling of' becomes 'down' (I can't explain this - if you can you should give a lot more credence to this answer).
'cutting'+'down'='CUTTING DOWN'

Can you help me to learn more?

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.