Devoutness (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
piety
'devoutness' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for piety that I've seen before include "Spirituality" , "Reverence for a god" , "Godly behaviour" , "State of being devout in religion" , "Dutiful devotion" .)