Crossword Genius

Small piece of land has a tenant (5)

Ross

I believe the answer is:

islet

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'small' is the definition.
I know that 'small' relates to this answer. I also know that both the answer and definition are singular nouns

'piece of land has a tenant' is the wordplay.
'piece of land' becomes 'isle' (I've seen this before).
'has' says to put letters next to each other.
'a tenant' becomes 't' (this might be a standard abbreviation which I don't know about).
'isle'+'t'='ISLET'

Can you help me to learn more?

(Other definitions for islet that I've seen before include "Cay, for example" , "Tiles to make a small island" , "One of Langerhans's" , "Tiles (anag.)" , "A small piece of territory" .)

I've seen this clue in The Telegraph and The Times.
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