Primarily like a song recalled with mostly rich content? (7)
I believe the answer is:
lyrical
'content?' is the definition.
Both the answer and definition are adjectives. Perhaps you can see an association between them that I can't see?
'primarily like a song recalled with mostly rich' is the wordplay.
'primarily' indicates taking the first letters.
'a song' becomes 'lay' (poetic term for a song).
'recalled' says the letters should be written backwards.
'with' is an insertion indicator.
'mostly' means to remove the last letter.
The first letter of 'like' is 'l'.
'lay' back-to-front is 'yal'.
'rich' with its last letter removed is 'ric'.
'yal' placed around 'ric' is 'yrical'.
'l'+'yrical'='LYRICAL'
Can you help me to learn more?
(Other definitions for lyrical that I've seen before include "Song-like, imaginative or expressive" , "To wax - is to enthuse" , "Songful" , "We may wax this" , "Using poetic or song-like language" .)