Answer: briary

AnswerCrossword Clue
BRIARYSharp
BRIARYFull of prickles
BRIARYLike many a rabbit's warren
briarya plant (as a rose, blackberry, or greenbrier) having a usually woody and thorny or prickly stem
briarymass or twig of these
briaryfull of briars also BRIERY