Occasionally call for assistance covering personal break (9)
I believe the answer is:
sometimes
'occasionally' is the definition.
(I've seen this before)
'call for assistance covering personal break' is the wordplay.
'call for assistance' becomes 'sos' (distress call).
'covering personal' becomes 'metime' (I can't explain this - if you can you should give a lot more credence to this answer).
'break' is an insertion indicator (inserted letters break the word apart).
'sos' placed around 'metime' is 'SOMETIMES'.
Can you help me to learn more?
(Other definitions for sometimes that I've seen before include "Not always" , "Seem moist (anag.)" , "On occasion" , "Occasionally available" .)