| Answer | Crossword Clue |
|---|---|
| LINESOUT | Hits hard, to no effect |
| XFACTOR | Its effect is hard to predict |
| tinkering | Attempt to repair or improve something in a casual or desultory way, often to no useful effect |
| osmium | a very hard brittle bluish-white metal occurring with platinum and alloyed with iridium in osmiridium: used to produce platinum alloys, mainly for pen tips and instrument pivots, as a catalyst, and in electric-light filaments. Symbol: Os; atomic no: 76; atomic wt: 190.2; valency: 0 to 8; relative density: 22.57; melting pt: 3033±30°C; boiling pt: 5012±100°C |
