| Answer | Crossword Clue |
|---|---|
| SSA | Important card source: Abbr. |
| OTS | Important source of commissions: Abbr. |
| NOB | Important cribbage card |
| TREY | Important card in Canasta. |
| SEVEN | Important fan-tan card |
| MESABI | Important source of iron |
| EGGYOLK | Important source of protein. |
| ORANGE | Important source of vitamins. |
| VOLGA | Important caviar source, with "the" |
| CIVETS | Important source of perfume base. |
| MAPLETREE | Source of important Vermont product. |
| GLUCOSE | Important energy source for the brain |
| DEADSEA | Salt lake, important source of potash for Israel. |
