Rishi: Vasiṣṭha (Vasiṣṭhāḥ)
Devata: Agni (implicit in the hymn-cycle; the inspired fires and mantra-forging powers serve Agni/ṛta)
Chandas: Triṣṭubh (likely; 7th maṇḍala Agni hymns predominantly Triṣṭubh—exact meter should be verified by pada syllable count)
Samhita Patha (Devanagari)एते द्युम्नेभिर्विश्वमातिरन्त मन्त्रं ये वारं नर्या अतक्षन् । प्र ये विशस्तिरन्त श्रोषमाणा आ ये मे अस्य दीधयन्नृतस्य ॥
Recitation with translationRig Veda 7.7.6
Transliterationeté dyumnébhir víśvam ā́tiranta mántraṃ yé vā́raṃ naryā́ atá kṣan | prá yé víśas tiránta śróṣamāṇā ā́ yé me asyá dī́dhayann ṛtásya ||
Translationएते द्युम्नेभिर्विश्वमातिरन्त, मन्त्रं ये वारं नर्या अतक्षन्। प्र ये विशस्तिरन्त श्रोषमाणा, आ ये मेऽस्य दीधयन्नृतस्य॥
Word by Wordद्यु॒म्नेभिःwith splendors / with glories अतिरन्तthey crossed / they passed beyond मन्त्रम्the sacred formulation / hymn वारम्the enclosure / protective covering (lit. ‘ward’) अतक्षन्they fashioned / they formed विशःthe clans / settlements तिरन्तthey traversed / they crossed श्रोषमाणाःlistening / hearkening दीधयन्they caused to shine in thought / they inspired ऋतस्यof ṛta (cosmic order / truth) 
