Forming a unit see unit formed (2,5)
I believe the answer is:
en suite
'forming a unit' is the definition.
I can't tell whether this definition defines the answer.
'see unit formed' is the wordplay.
'formed' is an anagram indicator.
'see'+'unit'='seeunit'
'seeunit' anagrammed gives 'EN SUITE'.
Can you help me to learn more?
(Other definitions for en suite that I've seen before include "Forming a single unit, like bedroom and bathroom" , "Forming a 22 dn" , "Like bathrooms next to bedrooms" , "(Of bathroom) accessible from the bedroom" , "(Of bathroom) immediately adjoining bedroom" .)