Cryptic crossword clue
Waste energy and try to sell Trigger? 4,1,4,5

The most common and most likely answer to this crossword clue is the 4 plus 1 plus 4 plus 5 letter word FLOG A DEAD HORSE

I've seen this crossword clue in The Daily Telegraph
F
L
O
G
A
D
E
A
D
H
O
R
S
E

Buddy explains!

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.

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