The most common and most likely answer to this crossword clue is the 9 letter word KNOCKDOWN
I've seen this crossword clue in The Times
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More clues leading to the result KNOCKDOWN
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The straight part
We know that "cheap" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cheap = knockdown.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 KNOCKDOWN mean?
KNOCKDOWN noun- An act of knocking down or the condition of being knocked down.
- An overwhelming blow.
- Very strong ale or beer.
- A genetically modified organism that carries one or more genes in its chromosomes that have been made less active or had their expression reduced.
- The use of a reagent such as an oligonucleotide with sequence complementary to an active gene or its mRNA transcript, to interfere with the expression of said gene.
- The condition of a sailboat being pushed abruptly to horizontal, with the mast parallel to the water surface.
- A short pass played downwards, for example from the head onto someone's feet.
- A shelter erected for use as a temporary dressing room.
- A collection of parts required to assemble a product, typically manufactured in one region and exported elsewhere for assembly.
- To employ the knockdown technique
- Powerful enough to overwhelm or knock down
- Reduced in price, originally to a price below which an article would not be sold by the auctioneer
- Capable of being taken apart for packing or removal.
- (of a rivet head) To be formed into a head by upsetting in fastening.