Sheepish letter to a bachelor (3)
I believe the answer is:
baa
'sheepish letter to a bachelor' is the definition.
I can't judge whether this definition defines the answer.
'letter to a bachelor' is the wordplay.
'letter' becomes 'a' ().
'to a' is a charade indicator (letters next to each other) (I've seen this in other clues).
'bachelor' becomes 'BA' (abbreviation for Bachelor of Arts degree).
'a' after 'ba' is 'BAA'.
Can you help me to learn more?
(Other definitions for baa that I've seen before include "Sound of sheep" , "Cry of a sheep" , "Bleat of a sheep" , "not quite consistent set of good A-level results?" , "Cry of lamb, sounds angry" .)