Nac

2 clues
Engine encl.
Govt. advisory board
Similar answers:
&tongued
3ona
40winks
Aaabonds
Aaacell
Aaamilne
Aaarating
Aabond
Aac
Aacell
Aacells
Aachen
Aacid
Aagonizes
Aahing
Aain
Aains
Aalen
Aaline
Aalon