Here are the possible solutions for they may run underground clue
Answer
Clue
Relevancy
cables
Clue
They may run underground
Definition
CABLE, to fasten with a heavy rope
ateam
Clue
Crack commando unit sent to prison by a military court for a crime they didn't commit, before escaping to the Los Angeles underground where today, still wanted by the government, they survive as soldi
chips
Clue
They may fall where they may
Definition
CHIP, to break a small piece from
seeds
Clue
They get their start underground
spades
Clue
They might help get you into more underground stuff
eggs
Clue
They run when they break
Definition
EGG, to incite
nylons
Clue
They're useless when they run
Definition
NYLON, (tradename) a synthetic material; a stocking made from this