Time off is sacred — I had a break (7)
I believe the answer is:
holiday
'time off' is the definition.
(eg a holiday is time off from work)
'sacred i had a break' is the wordplay.
'sacred' becomes 'holy' (similar in meaning).
'i had' becomes 'I'd' (common contraction).
'break' means one lot of letters goes inside another (inserted letters break the word apart).
'id'+'a'='ida'
'holy' going around 'ida' is 'HOLIDAY'.
'is' acts as a link.
(Other definitions for holiday that I've seen before include "See 8" , "Day of festivity" , "Billie" , "- leave" , "Time off work" .)