Perhaps circular field fine to rent out (7)

I believe the answer is:
leaflet
'perhaps circular' is the definition.
'leaflet' can be an answer for 'circular' (I've seen this in another clue). I am unsure of the 'perhaps' bit.
'field fine to rent out' is the wordplay.
'field' becomes 'lea' (lea can mean a meadow or field of grass).
'fine' becomes 'f' (abbreviation e.g. condition of old coins, books).
'to rent out' becomes 'let' (I've seen this in another clue).
'lea'+'f'+'let'='LEAFLET'
Can you help me to learn more?
(Other definitions for leaflet that I've seen before include "Tract" , "little advertising!" , "Distribute information" , "very little greenery" , "Handout sheet" .)
