Related Clues:

• Go by them in training
• You may have a job with the letters
• The bird may get bitter for being run over by the train
• The bit of 9 down that one did not have to do
• Bird for training?
• That's a job for the letter
• Work for 21 across
• The bird for 26 down
• Perhaps where to stick the 20 down
• Stick to your job
• The sort of job that's only for the lettered
• Job in mail
• That may be winning letters - just the job!
• Does the bird run along it for training?
• Complain bitterly that the bird has been run over by the train