How to tidy up pea gravel patch in garden?

We have a section of pea gravel in our front garden. There were lots of weeds, which we've killed - but now have dried up weeds etc in amongst the stones plus some new weeds growing through. Any tips on how to de-weed with gravel and then to clear the debris? Trying to tidy up ready for house sale - so aiming for a quick spruce up not weed prevention long term. Thanks!