Part of chicken keeping is looking out for spur, beak and townail problems and addressing them if necessary before the problem gets serious.
I'll start with this.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1166494/
What this tells me/us is one should never clip a chickens beak; never. If you do have a chicken with a serious beak deformity then take them to a vet or if it's so bad they can no longer eat then euthanising may prove to be the kindest most humane option.
It's not just the pain and distress caused to the chicken it's there is a high risk of creating hairline fractures in the beak and these weaken the beak in the long term.
Small beak defects can be put right, but with a file, not clippers, or shears. A little at a time with an engineers file, or a decent nail file will do it. I've done a few like this. A good tip is to have a cinder block in the run so the chickens can file their own beaks.
Roosters and hens learn to walk with spur growth. It's not like overnight they develope a problem. Roosters; it may apply to some hens but ime their spurs don't tend to grow as long, will develop a roll with their walk as their spurs grow.
That chap in my avatar had a serious pair of spurs that bent upwards. If you watched him running you wouldn't say they got in his way.
As
@Ridgerunner mentions above, feather loss on a hens back is not caused by a roosters spurs. It's almost always their toenails. Some breeds seem more prone to feather loss during mating than others and no matter how skillful the rooster is during mating feathers get broken.
Once again, the problem is best addressed with a nail file. You shouldn't have to file chicken toe nails often. If you're finding toenail growth and roughness a problem then look to the ground the chickens live on. In the normal course of events chickens wear their nails down by scratching in the ground. If your run is mainly bark chippings, or sand then the ground may not provide enough abrasive properties to wear the chickens nails as they scratch. Most natural ground does.
A quick manicure with a file from time to time is all that's required.
Spurs do occasionally cause problems especially spurs that do not curl upwards. What can happen is as the rooster slides off the hens back his spurs slide under the hens wings and can rip the hens skin underneath. Upward curved spurs rarely give problems. Straight and downward ponting spurs may.
Again, just filing the points of and checking along the spur for rought patches and sharp growths is perfectly adequate.
You do not need to cut or remove spurs.