Create user LDIF:

# vim newuser.ldif
dn: uid=newuser,ou=people,dc=<domain>,dc=<TLD>
objectClass: top
objectClass: account
objectClass: posixAccount
objectClass: shadowAccount
cn: newuser
uid: newuser
uidNumber: 1234
gidNumber: 1234
homeDirectory: /home/newuser
loginShell: /bin/bash
gecos: newuser surname
userPassword: {crypt}x
shadowLastChange: 0
shadowMax: 0
shadowWarning: 0

Add LDIF to LDAP:

ldapadd -H ldaps://<FQDN> -x -W -D "<Manager DN>" -f newuser.ldif

Set password:

ldappasswd -H ldaps://<FQDN> -S -x -W -D "<Manager DN>" "uid=newuser,ou=People,dc=<domain>,dc=<tld>"