The unclued lights, (one individually, one of two words and three pairs), are of a kind.   Across   4…

The nine unclued lights (including two of two words) form three groups of three: two of the three groups each…

The unclued lights, two of two words, are of a kind. Elsewhere, ignore an apostrophe.   Across 1 We hear…

The unclued lights (one of two words) are of a specific kind. Ignore all accents.   Across 1 H-E-X? (5)…