There isn't a separate clone permission. If a user is allowed to create an issue in a project they should also be able to clone an issue. I tested this by cloning an issue and then removing the create issue permission for a user and they were no longer able to clone the issue as that option was no longer available.
Since I am not familiar with your setup, I would check to ensure that group has the create issue permission.
Hello, Community! My name is Gosia and I'm a Product Manager on Jira Server and Data Center here at Atlassian. Since 2002 when we launched our public issue tracker, jira.atlass...
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