Body tissue - ponder finding chlorine inside (6)
I believe the answer is:
muscle
'body tissue' is the definition.
'muscle' can be an answer for 'tissue' (muscle is a kind of tissue). I am unsure of the 'body' bit.
'ponder finding chlorine inside' is the wordplay.
I cannot really see how this works, but
'chlorine' could be 'cl' (Cl is the chemical symbol for chlorine) and 'cl' is located in the answer.
'ponder' could be 'muse' (synonyms) and 'muse' is found in the leftover letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for muscle that I've seen before include "Beef" , "Fibrous bodily tissue for strength" , "One of the contractile organs of the body" , "meat" , "Body tissue - strength" .)