The most common and most likely answer to this crossword clue is the 6 letter word DIBBER
I've seen this crossword clue in Financial Times
D
I
B
B
E
R
More clues leading to the result DIBBER
Buddy explains!

The straight part
We know that "Here’s one for poking in bed" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case here’s one for poking in bed = dibber.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 DIBBER mean?
DIBBER noun- A tool with a handle on one end and a point on the other, used in the garden to poke holes in preparation for planting seeds, bulbs, etc. Also known as a dibble or dib.
- One who dibs.