unix - delete files only from directory

Say with a directory structure such as:

toplev/

      file2.txt

      file5.txt

      midlev/

            test.txt

            anotherdirec/

                         other.dat

                         myfile.txt

                         furtherdown/

                                    morefiles.txt

                         otherdirec/

                                    myfile4.txt

                                    file7.txt

How would you delete all files (not directories and not recursively) from the 'anotherdirec'? In this example it would delete 2 files (other.dat, myfile.txt)

I have tried the below command from within the 'midlev' directory but it gives this error ():

find anotherdirec/ -type f -maxdepth 1

I'm running SunOS 5.10.