The most common and most likely answer to this crossword clue is the 10 letter word CONSTANTLY
I've seen this crossword clue in The Guardian
C
O
N
S
T
A
N
T
L
Y
More clues leading to the result CONSTANTLY
Buddy explains!

The straight part
We know that "Always" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case always = constantly.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 CONSTANTLY mean?
CONSTANTLY adverb- With steadfastness; with resolve; in loyalty, faithfully.
- In a constant manner; occurring continuously; persistently.
- (frequency) Recurring regularly.
- In an unchangeable or invariable manner; in every case.