بسم الله الرحمن الرحيم
(Fatwa: 2259/2501=D/1429)
Ma-shaAllah, you are wearing sunnah beard, may Allah grant it. You can cut the parts of beard exceeding a size of one fist. The hair below chin also should not be cut. Yes, you can cut and clean those at throat.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
