Like a goal at rugby, it's often dropped (5)
I believe the answer is:
aitch
'like a goal at rugby it's often dropped' is the definition.
I can't judge whether this defines the answer.
'like a goal at rugby it's' is the wordplay.
I cannot quite see how this works, but
'a' is found in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
The remaining letters 'ich' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for aitch that I've seen before include "Aspirated letter" , "what some drop?" , "8th letter of the alphabet" , "bone" , "The letter h in full" .)