The most common and most likely answer to this crossword clue is the 7 letter word AMNESIA
I've seen this crossword clue in The Guardian
A
M
N
E
S
I
A
More clues leading to the result AMNESIA
- Men with lowered energy in the East recall trouble
- A name is confused, memory being lost
- Confusing names initially is a pathological condition
- Forgetfulness of men wandering in large continent
- One can't recall being the subject of this complaint
- It helps to forget different men in a large part of the world
- Is a name recollected? Not with this!
- Warmonger’s kin, not oddly, with a failure to remember the past
- Failure to remember men lost in Far East
- Incontinent drunken men cause of memory loss
Buddy explains!

The straight part
We know that "I don’t remember getting this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case i don’t remember getting this = amnesia.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 AMNESIA mean?
AMNESIA noun- Loss of memory; forgetfulness.
- Forgetfulness.