Is it a frostfree faucet that fits into a hole in the brick?
Does it always leak?
Or only when a hose is used?
Noticed drainage at ground level, outside. (slow leak) Will this need to be repaired from inside or outside? Appreciate any advice.
You've given us very little information to work with, so this may or may not help. If this is a frost free faucet, one of the very common problems is the result of leaving a hose attached over the winter. The hose prevents water from draining from the faucet tube that runs through the wall and attaches to the supply line. Since the actual shut-off parts are at the inside end of this tube, the leak doesn't show up until the faucet is turned on. If this is what your problem is, the leak is probably much heavier inside the house or wall than you are seeing on the outside. If this is your problem, the only repair is to replace. This must be done from the inside where the faucet attaches to the supply line. Sometimes these are soldered, often they are threaded. If threaded, use two wrenches to avoid twisting the supply line. Lots of "ifs", but without more data, pretty hard to do more that a generic guess.
The leak turned out to be a pin hole size leak in the pipe behind the spigot. Going from inside of house, we applied a clamp and the leak has stopped. Hopefully it will hold, but we're leaving area open a few days.
Not to rain on your parade, but a clamp around a leaking pipe isn't a proper repair. It will leak again sooner or later. I would be concern about what caused the leak in the first place.