Catch Romeo coming down to get cover (4)
I believe the answer is:
tarp
'cover' is the definition.
(I've seen this before)
'catch romeo coming down' is the wordplay.
I cannot quite see how this works, but
'romeo' could be 'r' (phonetic alphabet: alpha, bravo, charlie etc.) and 'r' is found in the answer.
The remaining letters 'tap' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'to get' is the link.
Can you help me to learn more?
(Other definitions for tarp that I've seen before include "Bail-out" , "canvas sheet" , "Cover" .)