One makig a brief contribution? PARALEGAL [note
brief, and I like the notion of a para's usual limited contribution.]
One who refuses to take an oath? CENSOR [take = accept or approve]
Sub builder? DELI [oldie but goodie --- love to see same clue without question mark for NAVY]
It may be at the end of the line FLY [fishing line]
Where you might se a cop aim a gun SPEEDTRAP [radar gun]
Big headed? SUDSY [as in beer]
Infinitive with a circumflex ETRE [upside down v over the first E is a circumflex and the French word means "to be" {infinitive form}]
Guess with foreign text needed in these puzzles today, this writing program ought to include an international alphabet, including l'accent ague; l'accent grave; cedilla, umlaut, dieresis, macron...