caitanya-līlāra vyāsa - the Vyāsadeva, or compiler of the pastimes, of Lord Caitanya Mahāprabhu; dāsa vṛndāvana - Vṛndāvana dāsa Ṭhākura; tāṅra - of him; ājñāya - upon the order; karoṅ - I do; tāṅra - his; ucchiṣṭa - of the remnants of food; carvaṇa - chewing.

Actually the authorized compiler of the pastimes of Śrī Caitanya Mahāprabhu is Śrīla Vṛndāvana dāsa, the incarnation of Vyāsadeva. Only upon his orders am I trying to chew the remnants of food that he has left.