Entertainment penning lines linked to low aspect of heavenly body (4,4)
I believe the answer is:
full moon
'aspect of heavenly body' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'entertainment penning lines linked to low' is the wordplay.
'entertainment' becomes 'fun' (fun is something entertaining).
'penning' indicates putting letters inside.
'lines' becomes 'll' (l is an abbreviation for line).
'linked to' says to put letters next to each other.
'low' becomes 'moo' (both can mean to make a cow noise).
'll'+'moo'='llmoo'
'fun' going around 'llmoo' is 'FULL MOON'.
Can you help me to learn more?
(Other definitions for full moon that I've seen before include "Lunar display with full disc illuminated" , "monthly highlight?" , "Bright time of the month" , "Wholly illuminated satellite" .)