隸

dexterity (312a) + water 水 (523) = subordinate 隶

This is cheating slightly as the bottom half isn’t really “water” (see also Character 524); the same applies to Character 753 below.

On the oil rig out at sea, fixing the pipes under water calls for dexterity, but it’s tedious work so it’s a job that is always given to the subordinate s. / [No pronunciation needed]