| Answer | Crossword Clue |
|---|---|
| productile | capable of being extended or prolonged |
| protrusible | (of a body part, such as the jaws of a fish) Capable of being protruded or extended |
| extensible | capable of being extended |
| sustaining | Cause to continue or be prolonged for an extended period or without interruption |
| sustains | Cause to continue or be prolonged for an extended period or without interruption |
| sustain | Cause to continue or be prolonged for an extended period or without interruption |
