Sheet that's recommended initially as shadier (7)
I believe the answer is:
leafier
'shadier' is the definition.
Both the answer and definition are comparative adjectives. Maybe there's a link between them I don't understand?
'sheet that's recommended initially' is the wordplay.
'sheet' becomes 'leaf' (leaf is a kind of sheet).
'that's' becomes 'ie'.
'initially' indicates taking the first letters.
The first letter of 'recommended' is 'r'.
'leaf'+'ie'+'r'='LEAFIER'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for leafier that I've seen before include "more rural" , "Having more foliage" , "more green" , "sort of suburb" .)