Devils occasionally appearing inside tempt for recreation (7)
I believe the answer is:
leisure
'for recreation' is the definition.
(I've seen this before)
'devils occasionally appearing inside tempt' is the wordplay.
'occasionally' indicates alternate letters (letters taken at regular intervals or occasions).
'appearing inside' indicates putting letters inside.
'tempt' becomes 'lure' (synonyms).
The alternating letters of 'devils' are 'eis'.
'eis' inserted inside 'lure' is 'LEISURE'.
(Other definitions for leisure that I've seen before include "Time available for ease and relaxation" , "Rest, relaxation" , "Free-time" , "idle hours" , "Enjoyment of free time" .)