### Clue: Husband in short cloak left union group (6)
### Answer: CHAPEL 
 ### Explanation: Definition: union group
  H(abbrev. for $$h$$usband, second appearance here) **contained in**(in) CAPE(a short cloak, like Batman's or Superman's) + L(abbrev. for $$l$$eft). 
Answer: Not a place of worship, but a locally based trade union group which is part of a larger, usually national union.  Stranger still, in the British printing industry, a chapel is a sub-branch of a branch union consisting of members in a single printing works or a department of a larger works, and is headed by a Father (or Mother) of Chapel.  Apparently it all stems from the origin of British trade unionism where non-conformist churches often acted as covers for trade union activities illegal at that time.  And printing offices were once controlled by churches.