Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
clasp [klɑːsp] n (hold) хва́тка#; (of necklace, bag) застёжка#
vt сжима́ть (сжать*perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.