Naḍw means removing or taking off; here it refers to lifting a veil. Īdāʿ literally suggests entrusting or depositing, and is used figuratively for placing welcome news in the listener's hearing.
These two verbal nouns lead to different senses: sight is engaged by unveiling, hearing by speech. Samʿī (“my hearing”) identifies the poet as the recipient.
Rather than describing physical beauty alone, the verse makes conversation part of its aesthetic scene.