What is the crossword answer for the clue: Undercover man

MOLE - a 4 letter word may be the answer you are looking for!

SPY - a 3 letter word may be the answer you are looking for!

PLANT - a 5 letter word may be the answer you are looking for!

NARC - a 4 letter word may be the answer you are looking for!

AGENT - a 5 letter word may be the answer you are looking for!

Undercover man

3 Character Answers:

SPY

4 Character Answers:

MOLE

NARC

5 Character Answers:

AGENT

PLANT