One who foresees rotating crops ingeniously around a circle (14)
I believe the answer is:
prognosticator
'one who foresees' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'rotating crops ingeniously around a circle' is the wordplay.
'ingeniously' indicates an anagram (I've seen this in other clues).
'around' means one lot of letters goes inside another.
'a circle' becomes 'O' (O is a circle).
'rotating'+'crops'='rotatingcrops'
'rotatingcrops' with letters rearranged gives 'prognosticatr'.
'prognosticatr' going around 'o' is 'PROGNOSTICATOR'.
Can you help me to learn more?
(Other definitions for prognosticator that I've seen before include "One predicting" , "Soothsayer, perhaps" .)