expending effort (6)
I believe the answer is:
trying
(Other definitions for trying that I've seen before include "Hearing (a case)" , "occupation of Oliver Wendell Holmes Jnr" , "Causing strain, annoying" , "job for a jury?" , "undertaking" .)
I believe the answer is:
trying
(Other definitions for trying that I've seen before include "Hearing (a case)" , "occupation of Oliver Wendell Holmes Jnr" , "Causing strain, annoying" , "job for a jury?" , "undertaking" .)