Connected, make certain to install it for Romeo (2,5)
I believe the answer is:
en suite
'connected' is the definition.
I cannot understand how the remainder of the clue works.
(Other definitions for en suite that I've seen before include "(Of bathroom) connected to the bedroom" , "Forming a unit or set" , "(Of bathroom) accessible from the bedroom" , "(Of a bedroom) having a private bathroom attached" , "Like bathrooms next to bedrooms" .)