### Clue: Part of this clue shows promise and flexibility (8)
### Answer: WORDPLAY 
 ### Explanation: Definition: Part of this clue
 WORD(a promise, as in "you have my word on it") **plus**(and) PLAY(flexibility;freedom of movement, within a space for part of a mechanism, or within the scope of an activity.
Defn: …, from "promise" to the end.