Like some handshakes (4)
I believe the answer is:
firm
'like some handshakes' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for firm that I've seen before include "team of doctors in hospital" , "Fixed" , "'Solid, unyielding (4)'" , "Steady kind of business" , "A steady business enterprise? (4)" .)