### Clue: One describes Scottish island facing decline in recession (8)
### Answer: NARRATOR 
 ### Explanation: Definition: One describes
  Reversal(*in recession*) of {ARRAN(*Scottish island*) +(*facing*) ROT(to *decline*,decompose)}.  Edit.note:  Following comments #1&2, it should perhaps be …{ROT(…) +(*facing*) ARRAN(…)}, to be strict about it.