Reviewing appraisal that includes large area of land (4)
I believe the answer is:
asia
'land' is the definition.
(Asia is an example)
'reviewing appraisal that includes' is the wordplay.
'reviewing' shows that the letters should be reversed in order (I've seen 'reviews' mean this (view the letters another way)).
'that includes' says the answer is hidden in the clue.
'aisa' is hidden in the letters of 'appraisal'.
'aisa' in reverse letter order is 'ASIA'.
'large area of' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for asia that I've seen before include "A is A (anag)" , "its pampered jades couldn't draw much?" , "lands in the east" , "Continent in which India is situated" , "Tigers found here" .)