Possible Clues:

• 21 acrosser
• First-born
• One in one in Spain is not the younger one
• Of higher rank - elder
• By the sound of it, seen that you are higher
• In view of this you're older now, by the sound of it
• Highest-ranking
• Type of moment
• By the sound of it, in view of it, that's higher in your rank
• Pupil in a higher form