The most common and most likely answer to this crossword clue is the 11 letter word SUBSTANTIVE
S
U
B
S
T
A
N
T
I
V
E
Buddy explains!

The straight part
We know that "Real" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case real = substantive.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SUBSTANTIVE mean?
SUBSTANTIVE noun- (grammar) a word that names a person, place, thing or idea; a noun (sensu stricto)
- Part of a text that carries the meaning, such as words and their ordering.
- (grammar) to make a word belonging to another part of speech into a substantive (that is, a noun) or use it as a noun
- Of the essence or essential element of a thing; as, "substantive information"
- Having substance; enduring; solid; firm; substantial
- Applying to essential legal principles and rules of right; as, "substantive law"
- Of a dye that does not need the use of a mordant to be made fast to that which is being dyed
- Depending on itself; independent.
- (grammar) used like a noun substantive
- (of a rank or appointment) actually and legally held, as distinct from an acting, temporary or honorary rank or appointment