Relaxed and stopped, but not initially (5)
I believe the answer is:
eased
'relaxed' is the definition.
(I've seen this before)
'stopped but not initially' is the wordplay.
'stopped' becomes 'ceased' ('cease' can be a synonym of 'stop').
'but not initially' means to remove the first letter.
'ceased' with its first letter taken off is 'EASED'.
'and' acts as a link.
(Other definitions for eased that I've seen before include "Made less stressful or difficult" , "Given relief" , "Relaxed" , "Allievated" , "Moved carefully" .)