Piratical lad at Land’s End (4)

I believe the answer is:

kidd

I'm a little stuck... Click here to teach me more about this clue!

'piratical lad' is the definition.
The definition suggests a singular noun which matches the answer.

'at land's end' is the wordplay.
'at' becomes 'kid' (I can't justify this - if you can you should give a lot more credence to this answer).
'end' says to take the final letters.
The final letter of 'land' is 'd'.
'kid'+'d'='KIDD'

Can you help me to learn more?

(Other definitions for kidd that I've seen before include "Captain William -, Scottish pirate" , "Captain --, Scots pirate" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app