The Baggies have not won in five games, while the 2-0 home loss to Norwich was their third successive defeat.
Clarke allowed his squad to travel to Dublin for a night out after Saturday's match, with the trip making headlines after striker Shane Long and goalkeeper Boaz Myhill were pictured busking in the streets of the Irish capital.
With the team just two points above the relegation zone, some fans have been critical, but Clarke saw no harm in allowing his players time off to enjoy themselves.
"I don't understand that it would look bad," he said. "They had two days off and they wanted to go and spend some time together - no problem.
"It was good for the players to get away. It was a difficult week. They went away, got themselves together and had a good time.
"They have to relax and enjoy themselves. If anyone says they weren't hurting after three defeats in a week - they were.
"They have been hurting, the same as everyone has been hurting. Everyone hurts when you lose. To try to make an issue of going out and trying to have a night out is wrong."
West Brom have won just one of their last nine league games but Clarke has been pleased with the attitude shown since the players returned to training this week.
"It's only on the back of one bad week - unfortunately there were three games in that week, so we lost the three games," he added.
"It was a difficult week for us, it was painful, we didn't enjoy it, nobody likes getting beat.
"Training this week has been good, the response from the players has been excellent."