Obvious issue with middle of religious chant
I believe the answer is:
plainsong
'chant' is the definition.
(plainsong is a kind of chant)
'obvious issue with middle of religious' is the wordplay.
'obvious' becomes 'plain' ('plain' can be similar in meaning to 'obvious'**).
'issue' becomes 'son' (issue can mean someone's offspring).
'with' says to put letters next to each other.
'middle of' indicates the central letters.
The middle letter of 'religious' is 'g'.
'plain'+'son'+'g'='PLAINSONG'
(Other definitions for plainsong that I've seen before include "Liturgical chant" , "church melody" , "Simple melody" , "sacred music" , "Lied, perhaps" .)