Faucet (3)

I believe the answer is:
tap
'faucet' is the definition.
(I know that tap is a type of faucet)
This is all the clue.
(Other definitions for tap that I've seen before include "1dn to get on the phone, perhaps!" , "Obtain money from" , "Secret (phone) intercept" , "Exploit; strike" , "A form of dance" .)