Here are the possible solutions for they have supporting roles clue
Answer
Clue
Relevancy
bras
Clue
They have supporting roles
Definition
(Spenser) brass
columns
Clue
Ones with supporting roles?
Definition
COLUMN, a vertical cylindrical support
pillars
Clue
Those with supporting roles?
Definition
PILLAR, to supply with vertical building supports
bosses
Clue
They have leading roles
Definition
BOSS, to domineer over
cclamps
Clue
They have gripping roles
cogs
Clue
They have small roles
Definition
COG, to cheat at dice
characteractors
Clue
They have supporting parts
newt
Clue
Gingrich who said "females have biological problems staying in a ditch for thirty days because they get infections and they don't have upper body strength"
Definition
a tailed amphibian of the salamander family, also EWT