- - What's troubling one about the affair?
- - He's tangled it up: that's what's wrong
- - this stuff does have importance
- - In substance, that's what's wrong
- - What we're made of
- - Less lustrous. That's what's wrong
- - What's the problem with wife hiding tense writing?
- - What mind wins over
- - "What does it ......?"
- - "What's the —?"
- - What's wrong with the stuff?
- - That's grey in the head
- - Any object that has mass and occupies a space
- - Discharge perhaps to be of importance
- - issue of race in sorting out mare
- - solids, liquids, gases and plasma
- - stuff the affair
- - Rugger to be important?
- - He gets terribly involved in the affair
- - molecular structure to be of importance
- - Dark or gray physics stuff
- - Make a difference to the runner starting treatment in hospital
- - such stuff can have importance
- - count as substance
- - "Dark ...," 1996 song by Porcupine Tree from their album "Signify"
- - body found in restroom at terminus
- - Substance — signify
- - More dull business?
- - No laughing ......
- - From which all physical things are made
- - Substance, material
- - Physical substance
- - Stuff that's less shiny?
- - Issue to be of importance
- - Physics stuff
- - Word that can follow the first parts of 17-, 25-, 42- and 55-Across
- - Physicist giving name to frequency shift
- - Stuff Mad Hatter had crazily taken out
- - Be important; substance
- - "As a .... of fact ..."
- - Carry weight
- - Increasingly dull subject
- - Content in business
- - Billy Joel "A ...... of Trust"
- - Physical stuff
- - Bear significance
- - Word with dark or gray
- - Something to discuss
- - Physics concern
- - Space occupier
- - "Anti" attachment
- - Be of consequence
- - Space taker-upper
- - Solid stuff
- - Gray ...... (brains)
- - Archer's "A ...... of Honor"
- - "More ......, with less art": Shak.
- - "More ...... with less art": "Hamlet"
- - Be significant
- - Be of importance.
- - ...... of fact.
- - Thing or affair.
- - Greene's "Heart of the ......."
- - Make a difference
- - Be relevant
- - Mean something
- - Have significance
- - Be important
- - Have importance
- - Gray
- - Substance
- - Signify
- - Import
- - Affair
- - See 19-Across
- - Physics topic
- - Physicist's study
- - Subject
- - Topic
- - Stuff
- - Concern
- - "Count ....!"
- - Anything of substance or importance
- - Substance of significance
- - its states include solid, liquid, and gas
- - Subject of consideration
- - Passengers in tram at terminal carry weight?
- - Issue
- - this substance may be of importance
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- [ Other definitions ]