If you want a bed, count a French one out! (3)
I believe the answer is:
cot
'if you want a bed' is the definition.
I can't tell whether this defines the answer.
'count a french one out' is the wordplay.
'a french one' becomes 'un' ('one' in French).
'out' suggests deleting specific letters.
'count' with 'un' removed is 'COT'.
Can you help me to learn more?
(Other definitions for cot that I've seen before include "Folding bed - fingerstall" , "Baby's bed" , "Camp bed" , "Crib" , "Infant's bed" .)