The most common and most likely answer to this crossword clue is the 7 letter word GERMANE
I've seen this crossword clue in The Times
G
E
R
M
A
N
E
More clues leading to the result GERMANE
- Pertinent European programme's back
- Relevant European supporting specific European
- Relevant European language together with English
- Cause of disease and cause of death not initially related
- European centre for dress material
- Anger me, failing to be relevant
- Relevant to treatment of men with rage
- European and oriental could be closely related
- Material upset little fellow – something hairy
- Relevant to language engineering primarily
Buddy explains!

The straight part
We know that "Relevant" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case relevant = germane.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 GERMANE mean?
GERMANE adjective- Related to the topic being discussed or considered.
- Germanium tetrahydride, GeH4
- (especially in combination) Any organic derivative of this compound.