The most common and most likely answer to this crossword clue is the 5 letter word HEFTS
I've seen this crossword clue in The Daily Telegraph
H
E
F
T
S
More clues leading to the result HEFTS
Buddy explains!

The straight part
We know that "Feels weight" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case feels weight = hefts.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does HEFTS mean?
HEFTS noun- Weight.
- Heaviness, the feel of weight.
- The act or effort of heaving; violent strain or exertion.
- The greater part or bulk of anything.
- To lift up; especially, to lift something heavy.
- To test the weight of something by lifting it.
- A piece of mountain pasture to which a farm animal has become hefted (accustomed).
- An animal that has become hefted thus.
- (West of Ireland) Poor condition in sheep caused by mineral deficiency.
- (Northern England and Scotland) To make (a farm animal, especially a flock of sheep) accustomed and attached to an area of mountain pasture.
- A number of sheets of paper fastened together, as for a notebook.
- A part of a serial publication.