The most common and most likely answer to this crossword clue is the 11 plus 4 letter word PORTMANTEAU WORD
I've seen this crossword clue in The Guardian
P
O
R
T
M
A
N
T
E
A
U
W
O
R
D
More clues leading to the result PORTMANTEAU WORD
- Turducken perhaps warmed up — or not — at spread
- Left instruction involving gown in motel, say
- Actress Natalie toured with a complex dramedy perhaps
- Water-carrying duo entering arena for Ipswich Town telethon?
- Left chap due to war reforms in Oxbridge, say
- Six here playing a part with Tudor women
- Batty aunt promoted war in fanzine or blog, say?
- PR ‘war’ amounted to revamped 5 for instance
- … turducken, for instance, is warmed upat spread
- Drama troupe won't adapt linguistic hybrid exemplified by Bollywood
Buddy explains!
The straight part
We know that "Six here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case six here = portmanteau word.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.