Crop Science boasts a grand, spacious, north-facing interior (8)
I believe the answer is:
agronomy
'crop science boasts' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'a grand spacious north-facing interior' is the wordplay.
'grand' becomes 'g' (G is short for grand as in a thousand).
'spacious' becomes 'roomy' (synonyms).
'north-facing' becomes 'n' (this might be a standard abbreviation of which I'm unaware).
'interior' indicates putting letters inside.
'roomy' going around 'n' is 'ronomy'.
'a'+'g'+'ronomy'='AGRONOMY'
Can you help me to learn more?
(Other definitions for agronomy that I've seen before include "Study of crops and soil management" , "Science of soil and crops" , "Rural economy" , "Science of soil management and crop production" .)