Clough hailed his side's display and tipped his summer signing from Dundee United for even greater things this season.
He said: "We're delighted to get three points away from home. I think we started the game well and dominated the first half.
"We waited around 40 minutes to score despite having a lot of possession, but we got another soon after our first. That second is as good as a team goal I think you will see all season and knocked the stuffing out of Yeovil.
"It's great when strikers get on the scoresheet and we had that today with Johnny Russell and Chris Martin. To score three great goals and get a clean sheet was brilliant.
"Johnny is still settling in but he's got a couple of goals already in the first four matches. There's plenty more to come from him. He's still getting used to his new team-mates and new surroundings.
"Winning away and keeping a clean sheet is a bit of a monkey off our back. We didn't win too many away last season but our home form was strong, but in the early weeks it seems to have reversed itself.
"I don't think Yeovil will be an easy place for teams to come, they will cause teams problems and you can see that with the way they knocked the ball around in the second half."
- Sports & Recreation
- Chris Martin
- Johnny Russell
- Dundee United
- Craig Bryson