City of Paris detailed by mostly tacky bits of verse (8)

'bits of verse' is the definition.
(trochee is a type of metrical foot in poetry)

'city of paris detailed by mostly tacky' is the wordplay.
'city of paris' becomes 'troy' (Paris was a hero from Troy in mythology).
'detailed' means to remove the last letter (the tail of the word is removed).
'by' says to put letters next to each other.
'mostly' means to remove the last letter (most but not all of the word).
'tacky' becomes 'cheesy' (cheesy can mean tacky or of bad quality).
'troy' with its last letter taken off is 'tro'.
'cheesy' with its last letter taken away is 'chees'.
'tro'+'chees'='TROCHEES'