English neglect bold adobe building causing animosity (3,5)
I believe the answer is:
bad blood
'animosity' is the definition.
(synonyms)
'english neglect bold adobe building' is the wordplay.
'english' becomes 'E' (abbreviation).
'neglect' suggests deleting specific letters.
'building' indicates an anagram.
'bold'+'adobe'='boldadobe'
'boldadobe' with 'e' taken out is 'boldadob'.
'boldadob' is an anagram of 'BAD BLOOD'.
'causing' acts as a link.
(Other definitions for bad blood that I've seen before include "Hostile feeling" , "Rancour" , "Feeling of animosity or hostility" , "Hostility, ill feeling of sanguinary kind" , "Hostility or ill-feeling, from tainted gore" .)