| Answer | Crossword Clue |
|---|---|
| leeched | LEECH, to cling to and drain |
| leech | to cling to and drain |
| periphyton | aquatic organisms which are attached to, or cling to, stems and leaves of rooted plants, rocks, etc |
| periphytons | PERIPHYTON, aquatic organisms which are attached to, or cling to, stems and leaves of rooted plants, rocks, etc |
| cleavers | A widely distributed scrambling plant related to bedstraws, with hooked bristles on the stem, leaves, and seeds that cling to fur and clothing |
