Clancy was born in the shady slums of Nar Shaddaa before the whole Clone Wars conflict. Having to sustain himself within such poor conditions, he took a liking to mechanics, and he began his conquest as a scrapper of sorts; the kind of person who would take a motivator out of a ship and forget it would crash without that. When he got older, he rose above in terms of morality and became a model engineer, eventually going to school in Coruscant to do mechanic work. Unfortunately, a year after his graduation marked the beginning of the conflicts, and seeing as how the Republic gave him the abilities to do his one and only job, he applied for the Navy posthaste.
Clancy's motivation is far from original, if you could believe that; he wants the whole war to end, but personally, he wants to show a sign of masterful architecture and crafting as to garner fame and approval all across the galaxy, making fortunes from his skill alone.
Clancy's main duty is that of Support. He must maintain ships and other devices so that they may be used easily and effectively, and while it may not be a flashy job, it is still needed in such a war.