Possible Clues:

• Partial correspondence
• All the same, that's sound for the start of 30 across to get on with care
• Correspondence in sound
• Resemblance of sound between syllables of nearby words
• Unexpectedly scans one with a sound resemblance?
• In poetry, resemblance in the sounds of words
• Can season (anag)
• Sound correspondence old granny kept in various cases
• As lad dances unclad, this is picked up
• Attribute of poet's lines/Whose final words are not quite rhymes