Fathers outside church shy away from dogs (10)

'dogs' is the definition.
(dachshund is a kind of dog)

'fathers outside church shy away from' is the wordplay.
'fathers' becomes 'dads' (dad is a kind of father).
'outside' is an insertion indicator.
'church' becomes 'ch' (common abbreviation).
'shy away from' becomes 'shun' (both can mean to avoid or reject).
'ch'+'shun'='chshun'
'dads' placed around 'chshun' is 'DACHSHUNDS'.