Kipling uses it eight times in "Recessional" (4)
I believe the answer is:
lest
'kipling uses it eight times in recessional' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lest that I've seen before include "In order not to, to avoid the risk that" , "For fear that (something should happen)" , "To avoid the risk that - let's do it" , "For fear that; in order to prevent" , "To avoid the risk that - we forget?" .)